# DEZE GEGEVENS MOGEN VRIJ WORDEN GEBRUIKT MITS DE VOLGENDE BRONVERMELDING WORDT GEGEVEN: # KONINKLIJK NEDERLANDS METEOROLOGISCH INSTITUUT (KNMI) # THESE DATA CAN BE USED FREELY PROVIDED THAT THE FOLLOWING SOURCE IS ACKNOWLEDGED: # ROYAL NETHERLANDS METEOROLOGICAL INSTITUTE. # Gehomogeniseerde reeks van maandtemperaturen van De Bilt (1901-heden) # Homogenized monthly temperature time series of De Bilt (1901-present) # version 1, February 2007 (for research purposes only) # Er zijn correcties aangebracht voor de volgende inhomogeniteiten: # 1 - verplaatsing gecombineerd met veranderind van hut (september 1950) / # relocation combined with a transition of the hut (September 1950). # 2 - verplaatsing van de Stevenson hut (augustus 1951) / # relocation of the Stevenson screen (August 1951). # 3 - verlaging van de Stevenson hut van 2.2 m naar 1.5 m (juni 1961) / # lowering of Stevenson screen from 2.2 m to 1.5 m (June 1961). # 4 - overgang van de kunstmatig geventileerde Stevenson hut naar KNMI schotelhut(juni 1993) / # transition of artificial ventilated Stevenson screen to KNMI round-plated screen # 5 - temperatuurstijging van 0.11°C per eeuw door stadswarmte / # warming trend of 0.11°C per century caused by urban warming # # Tair [C] at 52.100N, 5.183E, 2.0m 1901 01 -.424 1901 02 -.761 1901 03 3.369 1901 04 8.782 1901 05 12.181 1901 06 14.363 1901 07 18.402 1901 08 16.36 1901 09 14.567 1901 10 10.451 1901 11 5.307 1901 12 3.057 1902 01 4.478 1902 02 -.237 1902 03 5.113 1902 04 8.234 1902 05 9.334 1902 06 15.446 1902 07 15.169 1902 08 14.488 1902 09 13.009 1902 10 8.74 1902 11 3.779 1902 12 .908 1903 01 2.809 1903 02 5.755 1903 03 6.989 1903 04 5.28 1903 05 12.765 1903 06 13.971 1903 07 15.223 1903 08 14.922 1903 09 14.295 1903 10 11.329 1903 11 5.715 1903 12 .903 1904 01 .621 1904 02 3.095 1904 03 3.594 1904 04 9.362 1904 05 12.048 1904 06 14.067 1904 07 17.699 1904 08 15.676 1904 09 12.28 1904 10 9.364 1904 11 5.527 1904 12 4.141 1905 01 1.155 1905 02 3.742 1905 03 5.819 1905 04 6.344 1905 05 11.879 1905 06 16.602 1905 07 17.636 1905 08 15.659 1905 09 12.779 1905 10 6.649 1905 11 3.792 1905 12 2.456 1906 01 3.454 1906 02 2.495 1906 03 3.818 1906 04 7.263 1906 05 12.459 1906 06 13.991 1906 07 16.658 1906 08 16.587 1906 09 13.265 1906 10 11.952 1906 11 7.908 1906 12 .278 1907 01 1.563 1907 02 .876 1907 03 4.575 1907 04 7.245 1907 05 12.516 1907 06 13.373 1907 07 13.567 1907 08 14.912 1907 09 13.63 1907 10 11.467 1907 11 5.83 1907 12 3.264 1908 01 -1.27 1908 02 3.811 1908 03 3.432 1908 04 5.801 1908 05 13.102 1908 06 16.016 1908 07 16.353 1908 08 14.943 1908 09 13.522 1908 10 10.091 1908 11 4.539 1908 12 1.246 1909 01 .725 1909 02 .749 1909 03 2.837 1909 04 8.263 1909 05 11.307 1909 06 12.925 1909 07 14.497 1909 08 15.916 1909 09 13.045 1909 10 11.274 1909 11 4.545 1909 12 3.29 1910 01 3.421 1910 02 4.18 1910 03 5.062 1910 04 7.545 1910 05 12.619 1910 06 16.09 1910 07 14.934 1910 08 15.776 1910 09 13.297 1910 10 10.515 1910 11 3.46 1910 12 5.789 1911 01 1.046 1911 02 3.671 1911 03 5.006 1911 04 6.848 1911 05 13.982 1911 06 14.426 1911 07 18.236 1911 08 19.072 1911 09 14.346 1911 10 9.678 1911 11 5.912 1911 12 5.262 1912 01 1.845 1912 02 4.148 1912 03 7.334 1912 04 8.437 1912 05 11.678 1912 06 14.838 1912 07 18.061 1912 08 13.796 1912 09 10.618 1912 10 8.097 1912 11 5.508 1912 12 5.558 1913 01 2.182 1913 02 3.576 1913 03 6.878 1913 04 8.362 1913 05 12.671 1913 06 13.993 1913 07 14.47 1913 08 14.966 1913 09 13.744 1913 10 11.128 1913 11 8.41 1913 12 4.276 1914 01 -.18 1914 02 5.775 1914 03 5.864 1914 04 9.784 1914 05 11.531 1914 06 13.949 1914 07 17.501 1914 08 17.059 1914 09 13.586 1914 10 10.188 1914 11 5.156 1914 12 5.085 1915 01 3.086 1915 02 3.26 1915 03 3.989 1915 04 7.187 1915 05 12.362 1915 06 15.338 1915 07 15.209 1915 08 15.264 1915 09 12.948 1915 10 7.735 1915 11 2.878 1915 12 5.355 1916 01 5.834 1916 02 2.847 1916 03 4.252 1916 04 8.445 1916 05 13.019 1916 06 11.91 1916 07 14.97 1916 08 16.073 1916 09 13.217 1916 10 10.486 1916 11 5.877 1916 12 2.686 1917 01 -.784 1917 02 -1.364 1917 03 1.79 1917 04 4.291 1917 05 14.657 1917 06 18.006 1917 07 16.375 1917 08 15.881 1917 09 14.506 1917 10 8.227 1917 11 7.306 1917 12 .075 1918 01 2.696 1918 02 4.167 1918 03 4.414 1918 04 7.967 1918 05 13.865 1918 06 13.155 1918 07 15.809 1918 08 15.577 1918 09 13.011 1918 10 9.426 1918 11 4.321 1918 12 5.935 1919 01 1.782 1919 02 .395 1919 03 3.988 1919 04 5.996 1919 05 13.712 1919 06 14.114 1919 07 13.521 1919 08 15.631 1919 09 14.257 1919 10 7.179 1919 11 1.8 1919 12 3.754 1920 01 4.042 1920 02 5.495 1920 03 7.161 1920 04 8.974 1920 05 12.827 1920 06 15.459 1920 07 15.839 1920 08 13.794 1920 09 13.083 1920 10 8.336 1920 11 3.173 1920 12 2.191 1921 01 6.041 1921 02 3.196 1921 03 6.511 1921 04 8.493 1921 05 13.365 1921 06 14.468 1921 07 17.777 1921 08 16.583 1921 09 13.865 1921 10 12.906 1921 11 1.265 1921 12 3.332 1922 01 .217 1922 02 1.788 1922 03 4.017 1922 04 5.749 1922 05 13.303 1922 06 14.85 1922 07 14.782 1922 08 14.498 1922 09 12.447 1922 10 6.631 1922 11 4.94 1922 12 4.699 1923 01 3.874 1923 02 3.112 1923 03 6.357 1923 04 7.501 1923 05 10.295 1923 06 11.289 1923 07 18.52 1923 08 15.446 1923 09 12.866 1923 10 10.846 1923 11 2.926 1923 12 .478 1924 01 -.049 1924 02 .487 1924 03 3.156 1924 04 6.293 1924 05 13.236 1924 06 14.608 1924 07 15.97 1924 08 14.015 1924 09 13.855 1924 10 10.793 1924 11 4.961 1924 12 3.89 1925 01 3.695 1925 02 4.87 1925 03 3.423 1925 04 7.759 1925 05 13.754 1925 06 14.864 1925 07 18.034 1925 08 15.963 1925 09 11.66 1925 10 9.982 1925 11 2.774 1925 12 1.447 1926 01 2.065 1926 02 6.398 1926 03 5.69 1926 04 9.714 1926 05 10.614 1926 06 13.566 1926 07 17.417 1926 08 16.191 1926 09 15.256 1926 10 8.152 1926 11 6.689 1926 12 2.968 1927 01 3.725 1927 02 2.925 1927 03 6.392 1927 04 7.453 1927 05 11.358 1927 06 12.878 1927 07 16.735 1927 08 16.502 1927 09 13.968 1927 10 10.599 1927 11 4.095 1927 12 -1.155 1928 01 3.456 1928 02 4.924 1928 03 4.316 1928 04 8.006 1928 05 10.815 1928 06 13.65 1928 07 16.795 1928 08 15.724 1928 09 12.6 1928 10 9.989 1928 11 7.67 1928 12 2.376 1929 01 -1.506 1929 02 -5.306 1929 03 3.448 1929 04 5.135 1929 05 12.617 1929 06 13.479 1929 07 16.781 1929 08 15.839 1929 09 15.896 1929 10 10.349 1929 11 6.123 1929 12 5.259 1930 01 4.592 1930 02 1.693 1930 03 4.679 1930 04 8.537 1930 05 11.665 1930 06 17.455 1930 07 15.819 1930 08 16.206 1930 09 13.902 1930 10 10.428 1930 11 7.282 1930 12 2.306 1931 01 2.427 1931 02 1.331 1931 03 2.223 1931 04 6.932 1931 05 13.512 1931 06 14.927 1931 07 16.195 1931 08 15.405 1931 09 11.42 1931 10 9.056 1931 11 6.67 1931 12 3.35 1932 01 3.9 1932 02 1.654 1932 03 2.967 1932 04 6.928 1932 05 12.159 1932 06 14.603 1932 07 17.104 1932 08 18.565 1932 09 14.656 1932 10 9.413 1932 11 5.479 1932 12 3.578 1933 01 -.062 1933 02 2.869 1933 03 6.653 1933 04 8.113 1933 05 12.058 1933 06 15.168 1933 07 17.764 1933 08 17.018 1933 09 14.688 1933 10 10.09 1933 11 3.938 1933 12 -2.062 1934 01 2.098 1934 02 3.464 1934 03 4.665 1934 04 9.989 1934 05 12.025 1934 06 15.547 1934 07 17.285 1934 08 15.869 1934 09 15.864 1934 10 11.447 1934 11 5.414 1934 12 7.269 1935 01 2.751 1935 02 4.438 1935 03 4.786 1935 04 7.518 1935 05 10.956 1935 06 16.166 1935 07 17.303 1935 08 16.784 1935 09 14.009 1935 10 9.858 1935 11 7.103 1935 12 2.671 1936 01 4.554 1936 02 2.284 1936 03 6.346 1936 04 5.83 1936 05 12.9 1936 06 16.142 1936 07 16.06 1936 08 16.483 1936 09 13.952 1936 10 8.864 1936 11 5.205 1936 12 3.335 1937 01 2.462 1937 02 4.903 1937 03 3.21 1937 04 8.446 1937 05 14.125 1937 06 15.344 1937 07 16.279 1937 08 16.991 1937 09 13.237 1937 10 11.018 1937 11 4.551 1937 12 1.656 1938 01 3.861 1938 02 3.47 1938 03 7.554 1938 04 6.515 1938 05 11.05 1938 06 15.029 1938 07 15.752 1938 08 17.494 1938 09 14.823 1938 10 9.61 1938 11 8.656 1938 12 .449 1939 01 4.134 1939 02 3.573 1939 03 4.314 1939 04 8.867 1939 05 11.913 1939 06 15.945 1939 07 16.58 1939 08 17.196 1939 09 14.945 1939 10 7.712 1939 11 7.308 1939 12 1.048 1940 01 -5.667 1940 02 -1.169 1940 03 5.006 1940 04 8.642 1940 05 13.128 1940 06 16.24 1940 07 15.398 1940 08 14.801 1940 09 12.787 1940 10 8.988 1940 11 6.707 1940 12 .824 1941 01 -2.665 1941 02 1.653 1941 03 4.554 1941 04 6.408 1941 05 9.572 1941 06 16.486 1941 07 18.832 1941 08 14.639 1941 09 14.266 1941 10 9.842 1941 11 4.136 1941 12 4.794 1942 01 -5.276 1942 02 -4.134 1942 03 2.511 1942 04 8.937 1942 05 12.074 1942 06 14.035 1942 07 15.628 1942 08 17.496 1942 09 14.572 1942 10 11.999 1942 11 5.638 1942 12 4.325 1943 01 2.539 1943 02 4.533 1943 03 6.193 1943 04 10.136 1943 05 13.36 1943 06 14.064 1943 07 16.772 1943 08 16.401 1943 09 13.281 1943 10 10.553 1943 11 4.701 1943 12 1.385 1944 01 5.025 1944 02 1.917 1944 03 3.431 1944 04 9.141 1944 05 11.482 1944 06 13.696 1944 07 16.465 1944 08 18.903 1944 09 13.006 1944 10 9.639 1944 11 6.346 1944 12 2.568 1945 01 -1.724 1945 02 6.095 1945 03 7.127 1945 04 9.887 1945 05 13.539 1945 06 15.612 1945 07 17.399 1945 08 16.028 1945 09 14.368 1945 10 11.631 1945 11 4.888 1945 12 3.312 1946 01 .046 1946 02 4.676 1946 03 4.003 1946 04 9.919 1946 05 12.808 1946 06 13.557 1946 07 17.046 1946 08 15.34 1946 09 14.334 1946 10 9.443 1946 11 6.487 1946 12 -.26 1947 01 -1.607 1947 02 -5.361 1947 03 3.079 1947 04 8.648 1947 05 14.998 1947 06 17.126 1947 07 18.423 1947 08 19.38 1947 09 16.653 1947 10 9.461 1947 11 7.12 1947 12 4.232 1948 01 4.96 1948 02 3.102 1948 03 6.527 1948 04 9.67 1948 05 12.664 1948 06 14.915 1948 07 16.192 1948 08 16.044 1948 09 14.285 1948 10 9.873 1948 11 4.885 1948 12 3.541 1949 01 3.543 1949 02 3.865 1949 03 3.861 1949 04 10.046 1949 05 11.266 1949 06 14.064 1949 07 17.056 1949 08 16.707 1949 09 17.014 1949 10 11.575 1949 11 5.221 1949 12 4.492 1950 01 .883 1950 02 5.557 1950 03 6.308 1950 04 7.341 1950 05 12.736 1950 06 16.933 1950 07 16.913 1950 08 16.726 1950 09 13.303 1950 10 9.203 1950 11 5.698 1950 12 -1.287 1951 01 3.817 1951 02 3.884 1951 03 3.85 1951 04 7.04 1951 05 12.271 1951 06 15.205 1951 07 16.655 1951 08 16.167 1951 09 15.29 1951 10 8.648 1951 11 8.443 1951 12 4.357 1952 01 2.396 1952 02 2.315 1952 03 4.83 1952 04 10.204 1952 05 13.161 1952 06 14.841 1952 07 17.029 1952 08 16.676 1952 09 11.446 1952 10 8.094 1952 11 2.875 1952 12 1.393 1953 01 1.194 1953 02 2.282 1953 03 4.786 1953 04 8.364 1953 05 12.819 1953 06 15.588 1953 07 16.75 1953 08 16.271 1953 09 13.672 1953 10 11.208 1953 11 7.068 1953 12 5.326 1954 01 .089 1954 02 -.413 1954 03 5.795 1954 04 6.601 1954 05 12.856 1954 06 15.033 1954 07 14.23 1954 08 15.624 1954 09 13.401 1954 10 11.803 1954 11 6.63 1954 12 5.393 1955 01 .065 1955 02 .071 1955 03 1.863 1955 04 8.314 1955 05 9.928 1955 06 14.318 1955 07 17.51 1955 08 17.891 1955 09 14.258 1955 10 9.104 1955 11 6.449 1955 12 4.586 1956 01 2.092 1956 02 -6.803 1956 03 5.371 1956 04 5.607 1956 05 12.145 1956 06 12.868 1956 07 16.397 1956 08 13.995 1956 09 14.681 1956 10 9.634 1956 11 4.965 1956 12 5.312 1957 01 3.591 1957 02 5.065 1957 03 8.317 1957 04 8.412 1957 05 10.255 1957 06 16.317 1957 07 17.54 1957 08 15.561 1957 09 12.878 1957 10 10.695 1957 11 6.332 1957 12 2.877 1958 01 2.028 1958 02 3.679 1958 03 2.204 1958 04 6.309 1958 05 12.205 1958 06 14.738 1958 07 16.597 1958 08 17.199 1958 09 15.739 1958 10 10.94 1958 11 4.953 1958 12 4.633 1959 01 1.58 1959 02 .609 1959 03 6.952 1959 04 9.762 1959 05 13.384 1959 06 16.039 1959 07 18.413 1959 08 17.75 1959 09 15.487 1959 10 11.118 1959 11 4.94 1959 12 4.281 1960 01 2.711 1960 02 3.054 1960 03 5.575 1960 04 8.933 1960 05 12.976 1960 06 16.275 1960 07 15.356 1960 08 15.733 1960 09 13.604 1960 10 10.637 1960 11 7.444 1960 12 3.029 1961 01 1.908 1961 02 6.193 1961 03 7.032 1961 04 10.403 1961 05 10.99 1961 06 15.434 1961 07 15.505 1961 08 15.93 1961 09 16.56 1961 10 11.306 1961 11 4.595 1961 12 1.558 1962 01 3.389 1962 02 2.728 1962 03 1.907 1962 04 7.962 1962 05 9.934 1962 06 13.681 1962 07 14.627 1962 08 15.213 1962 09 12.956 1962 10 10.731 1962 11 4.133 1962 12 -.745 1963 01 -5.26 1963 02 -3.283 1963 03 4.53 1963 04 8.962 1963 05 10.903 1963 06 15.605 1963 07 16.182 1963 08 15.149 1963 09 13.787 1963 10 9.583 1963 11 8.209 1963 12 -1.211 1964 01 .554 1964 02 3.396 1964 03 2.612 1964 04 8.671 1964 05 14.231 1964 06 15.307 1964 07 16.762 1964 08 15.94 1964 09 14.015 1964 10 7.854 1964 11 6.269 1964 12 2.302 1965 01 2.666 1965 02 2.053 1965 03 4.272 1965 04 7.63 1965 05 11.803 1965 06 14.657 1965 07 14.827 1965 08 15.223 1965 09 12.736 1965 10 9.882 1965 11 2.609 1965 12 4.379 1966 01 .283 1966 02 4.244 1966 03 5.15 1966 04 8.315 1966 05 12.825 1966 06 16.61 1966 07 15.351 1966 08 15.681 1966 09 13.703 1966 10 10.946 1966 11 4.249 1966 12 4.346 1967 01 3.022 1967 02 5.087 1967 03 6.692 1967 04 7.329 1967 05 12.603 1967 06 14.34 1967 07 18.15 1967 08 16.422 1967 09 14.077 1967 10 11.688 1967 11 4.994 1967 12 3.316 1968 01 1.972 1968 02 1.429 1968 03 6.091 1968 04 9.219 1968 05 10.931 1968 06 15.338 1968 07 16.246 1968 08 17.089 1968 09 14.381 1968 10 11.616 1968 11 4.837 1968 12 -.271 1969 01 4.286 1969 02 -.167 1969 03 2.19 1969 04 7.812 1969 05 12.811 1969 06 15.126 1969 07 18.086 1969 08 17.634 1969 09 14.693 1969 10 12.672 1969 11 6.342 1969 12 -1.785 1970 01 .509 1970 02 1.03 1970 03 2.911 1970 04 6.044 1970 05 13.033 1970 06 17.525 1970 07 15.655 1970 08 16.896 1970 09 14.296 1970 10 10.613 1970 11 7.434 1970 12 2.418 1971 01 2.206 1971 02 3.73 1971 03 2.671 1971 04 7.986 1971 05 13.684 1971 06 13.845 1971 07 17.166 1971 08 17.066 1971 09 13.198 1971 10 10.38 1971 11 5.648 1971 12 5.353 1972 01 .447 1972 02 3.528 1972 03 6.15 1972 04 7.644 1972 05 11.721 1972 06 13.353 1972 07 17.155 1972 08 15.394 1972 09 11.786 1972 10 8.917 1972 11 5.883 1972 12 3.191 1973 01 2.768 1973 02 2.806 1973 03 5.23 1973 04 5.997 1973 05 11.898 1973 06 15.936 1973 07 16.97 1973 08 17.602 1973 09 14.802 1973 10 8.665 1973 11 5.022 1973 12 2.651 1974 01 5.106 1974 02 4.53 1974 03 5.526 1974 04 9.052 1974 05 11.587 1974 06 14.715 1974 07 15.311 1974 08 16.33 1974 09 12.611 1974 10 6.883 1974 11 6.424 1974 12 7.166 1975 01 6.111 1975 02 3.004 1975 03 4.602 1975 04 7.374 1975 05 11.025 1975 06 15.003 1975 07 17.726 1975 08 19.807 1975 09 15.13 1975 10 8.404 1975 11 5.16 1975 12 3.446 1976 01 4.068 1976 02 2.807 1976 03 2.923 1976 04 7.377 1976 05 13.22 1976 06 17.919 1976 07 19.26 1976 08 17.909 1976 09 13.685 1976 10 11.077 1976 11 6.789 1976 12 1.612 1977 01 2.877 1977 02 4.848 1977 03 6.996 1977 04 6.596 1977 05 11.858 1977 06 14.518 1977 07 16.904 1977 08 16.037 1977 09 13.331 1977 10 11.444 1977 11 6.758 1977 12 4.908 1978 01 2.895 1978 02 .968 1978 03 6.512 1978 04 6.818 1978 05 12.076 1978 06 14.954 1978 07 15.31 1978 08 15.274 1978 09 13.667 1978 10 10.801 1978 11 6.227 1978 12 1.665 1979 01 -3.319 1979 02 -1.001 1979 03 4.604 1979 04 7.7 1979 05 11.391 1979 06 14.862 1979 07 15.834 1979 08 15.48 1979 09 13.819 1979 10 10.79 1979 11 5.525 1979 12 5.316 1980 01 .074 1980 02 4.74 1980 03 4.619 1980 04 7.886 1980 05 12.219 1980 06 14.928 1980 07 15.714 1980 08 16.904 1980 09 15.194 1980 10 9.341 1980 11 4.841 1980 12 3.466 1981 01 2.647 1981 02 1.447 1981 03 8.057 1981 04 8.231 1981 05 13.195 1981 06 14.29 1981 07 16.235 1981 08 16.632 1981 09 14.607 1981 10 8.433 1981 11 6.64 1981 12 -.796 1982 01 .987 1982 02 2.66 1982 03 5.12 1982 04 7.533 1982 05 12.781 1982 06 16.559 1982 07 18.828 1982 08 17.134 1982 09 15.519 1982 10 11.006 1982 11 8.059 1982 12 3.299 1983 01 6.073 1983 02 .799 1983 03 5.654 1983 04 8.436 1983 05 10.548 1983 06 16.298 1983 07 20.027 1983 08 18.056 1983 09 14.131 1983 10 10.296 1983 11 6.051 1983 12 3.672 1984 01 3.34 1984 02 1.88 1984 03 3.879 1984 04 7.768 1984 05 10.489 1984 06 13.694 1984 07 15.803 1984 08 18.042 1984 09 13.44 1984 10 11.604 1984 11 8.08 1984 12 4.229 1985 01 -3.145 1985 02 -.697 1985 03 4.062 1985 04 8.46 1985 05 13.12 1985 06 13.669 1985 07 17.318 1985 08 15.825 1985 09 14.315 1985 10 10.193 1985 11 2.552 1985 12 5.641 1986 01 2.296 1986 02 -3.708 1986 03 4.109 1986 04 6.082 1986 05 13.225 1986 06 16.348 1986 07 17.12 1986 08 15.511 1986 09 11.478 1986 10 11.347 1986 11 7.814 1986 12 5.011 1987 01 -2.825 1987 02 2.008 1987 03 2.215 1987 04 10.645 1987 05 10.105 1987 06 13.69 1987 07 16.745 1987 08 16.142 1987 09 14.693 1987 10 10.717 1987 11 6.723 1987 12 4.284 1988 01 5.761 1988 02 4.459 1988 03 4.981 1988 04 8.6 1988 05 14.291 1988 06 14.739 1988 07 15.915 1988 08 16.56 1988 09 13.879 1988 10 10.842 1988 11 6.049 1988 12 6.915 1989 01 4.377 1989 02 5.242 1989 03 8.145 1989 04 6.832 1989 05 14.564 1989 06 15.665 1989 07 18.02 1989 08 17.146 1989 09 15.471 1989 10 12.26 1989 11 5.468 1989 12 4.724 1990 01 5.585 1990 02 7.523 1990 03 8.373 1990 04 8.801 1990 05 13.853 1990 06 14.934 1990 07 16.845 1990 08 18.413 1990 09 13.003 1990 10 11.92 1990 11 6.097 1990 12 4.065 1991 01 3.087 1991 02 -.86 1991 03 8.665 1991 04 8.437 1991 05 9.926 1991 06 12.646 1991 07 18.912 1991 08 17.902 1991 09 14.932 1991 10 10.113 1991 11 5.206 1991 12 3.831 1992 01 2.612 1992 02 4.834 1992 03 6.767 1992 04 8.616 1992 05 15.525 1992 06 17.151 1992 07 18.159 1992 08 17.736 1992 09 14.548 1992 10 7.899 1992 11 7.898 1992 12 3.585 1993 01 4.959 1993 02 2.338 1993 03 5.695 1993 04 11.051 1993 05 14.218 1993 06 15.784 1993 07 16.024 1993 08 15.127 1993 09 12.988 1993 10 8.869 1993 11 2.078 1993 12 4.991 1994 01 5.077 1994 02 1.379 1994 03 7.216 1994 04 8.067 1994 05 12.261 1994 06 14.933 1994 07 21.251 1994 08 17.471 1994 09 13.503 1994 10 9.251 1994 11 10.08 1994 12 5.193 1995 01 3.725 1995 02 6.578 1995 03 5.396 1995 04 9.095 1995 05 12.718 1995 06 14.642 1995 07 20.012 1995 08 19.589 1995 09 14.115 1995 10 12.576 1995 11 6.709 1995 12 -.988 1996 01 -.199 1996 02 .45 1996 03 3.104 1996 04 9.281 1996 05 10.62 1996 06 15.561 1996 07 16.149 1996 08 17.198 1996 09 12.381 1996 10 10.665 1996 11 5.758 1996 12 .491 1997 01 -1.303 1997 02 6.129 1997 03 7.893 1997 04 7.727 1997 05 12.655 1997 06 15.847 1997 07 17.293 1997 08 20.442 1997 09 14.197 1997 10 9.629 1997 11 6.547 1997 12 4.884 1998 01 4.631 1998 02 6.246 1998 03 7.447 1998 04 9.306 1998 05 14.831 1998 06 15.702 1998 07 16.192 1998 08 16.392 1998 09 14.939 1998 10 9.75 1998 11 3.569 1998 12 4.453 1999 01 5.094 1999 02 2.948 1999 03 7.223 1999 04 9.731 1999 05 14.094 1999 06 14.858 1999 07 19.023 1999 08 17.391 1999 09 17.241 1999 10 10.517 1999 11 6.598 1999 12 4.662 2000 01 4.219 2000 02 5.745 2000 03 6.687 2000 04 9.877 2000 05 14.622 2000 06 15.893 2000 07 15.409 2000 08 17.306 2000 09 15.707 2000 10 11.209 2000 11 7.68 2000 12 4.958 2001 01 2.495 2001 02 4.357 2001 03 4.834 2001 04 8.172 2001 05 14.031 2001 06 15.046 2001 07 18.421 2001 08 18.373 2001 09 13.322 2001 10 14.108 2001 11 7.009 2001 12 2.747 2002 01 4.307 2002 02 7.002 2002 03 7.11 2002 04 9.218 2002 05 13.259 2002 06 16.391 2002 07 17.439 2002 08 18.485 2002 09 14.441 2002 10 9.349 2002 11 7.754 2002 12 2.778 2003 01 2.38 2003 02 1.701 2003 03 7.203 2003 04 9.817 2003 05 13.067 2003 06 17.727 2003 07 18.722 2003 08 19.142 2003 09 13.807 2003 10 7.351 2003 11 7.883 2003 12 3.887 2004 01 3.473 2004 02 4.706 2004 03 5.808 2004 04 10.239 2004 05 12.179 2004 06 15.409 2004 07 16.589 2004 08 18.728 2004 09 15.062 2004 10 11.195 2004 11 6.176 2004 12 3.124 2005 01 5.139 2005 02 2.274 2005 03 6.426 2005 04 10.271 2005 05 12.459 2005 06 16.645 2005 07 17.539 2005 08 16.078 2005 09 15.601 2005 10 13.226 2005 11 6.734 2005 12 3.862 2006 01 1.348 2006 02 2.773 2006 03 3.816 2006 04 8.867 2006 05 14.38 2006 06 16.56 2006 07 22.193 2006 08 16.238 2006 09 17.8 2006 10 13.461 2006 11 9.04 2006 12 6.389 2007 01 6.977 2007 02 5.919 2007 03 7.848 2007 04 12.94 2007 05 14.006 2007 06 17.36 2007 07 16.893 2007 08 16.993 2007 09 13.67 2007 10 9.951 2007 11 6.793 2007 12 3.66 2008 01 6.386 2008 02 5.021 2008 03 5.783 2008 04 8.81 2008 05 15.557 2008 06 16.37 2008 07 17.935 2008 08 17.277 2008 09 13.493 2008 10 9.964 2008 11 6.736 2008 12 2.331 2009 01 .68 2009 02 3.19 2009 03 6.209 2009 04 12.06 2009 05 13.738 2009 06 15.526 2009 07 17.964 2009 08 18.338 2009 09 14.846 2009 10 10.577 2009 11 9.356 2009 12 2.109 2010 01 -.572 2010 02 1.483 2010 03 6.318 2010 04 9.606 2010 05 10.377 2010 06 16.323 2010 07 19.757 2010 08 16.67 2010 09 13.436 2010 10 10.286 2010 11 5.69 2010 12 -1.262 2011 01 3.402 2011 02 4.462 2011 03 5.931 2011 04 13 2011 05 13.857 2011 06 16 2011 07 15.773 2011 08 16.77 2011 09 15.523 2011 10 11.302 2011 11 7.073 2011 12 6.364 2012 01 4.764 2012 02 .683 2012 03 8.177 2012 04 8.266