| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1893 | ----- | z | 34.55 | 41.66 | 43.85 | 54.47 | b | 61.08 | 68.08 | 70.64 | c | 57.53 | 48.44 | 42.05 | 36.66 | 50.82 | ||||||||||
| 1894 | 35.27 | 32.80 | 42.61 | 49.62 | 58.87 | 61.45 | 70.90 | 72.18 | a | 61.92 | l | 53.69 | 44.43 | a | 31.58 | 50.31 | ||||||||||
| 1895 | 32.34 | 39.98 | 43.40 | 50.38 | 56.23 | 65.12 | 68.19 | 68.84 | 58.27 | 55.84 | 39.32 | 31.05 | 50.75 | |||||||||||||
| 1896 | 36.97 | 41.00 | 45.77 | 43.62 | 51.52 | 65.00 | 74.56 | 69.56 | 60.72 | 53.23 | 38.17 | 38.02 | 51.51 | |||||||||||||
| 1897 | 35.65 | 38.16 | 37.47 | 52.18 | 62.21 | 61.40 | 68.11 | 72.03 | a | 60.28 | 52.45 | 40.80 | 36.74 | 51.46 | ||||||||||||
| 1898 | 31.63 | 41.12 | 41.66 | 51.58 | 55.34 | 63.37 | 70.84 | 72.06 | 62.35 | 51.35 | 40.30 | 33.53 | 51.26 | |||||||||||||
| 1899 | 36.52 | 37.23 | 43.15 | 49.50 | 51.92 | 62.97 | 71.69 | 64.73 | 65.05 | 49.10 | 45.70 | 35.84 | 51.12 | |||||||||||||
| 1900 | 39.84 | 40.75 | 49.05 | 48.26 | a | 56.26 | 66.47 | 70.56 | 65.05 | 58.82 | 49.39 | 43.15 | 38.60 | 52.18 | ||||||||||||
| 1901 | 27.24 | 35.04 | 44.44 | 47.52 | 56.79 | 60.52 | 69.63 | 72.29 | 59.58 | 55.23 | 44.98 | 36.43 | c | 50.81 | ||||||||||||
| 1902 | 36.42 | 44.73 | 42.40 | 48.52 | e | 54.98 | 63.35 | 67.87 | 69.71 | ----- | z | ----- | z | 42.48 | ----- | z | 52.27 | |||||||||
| 1903 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1904 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1910 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 9999.00 | |
| 1914 | 37.29 | j | 38.95 | 48.52 | 50.60 | 59.50 | 62.70 | 72.34 | 72.71 | 59.62 | 53.24 | 40.82 | 29.15 | 53.47 | ||||||||||||
| 1915 | 34.81 | 39.30 | a | 45.97 | 51.87 | 52.63 | 62.75 | 77.45 | 83.37 | 64.55 | 52.76 | b | 40.13 | 35.94 | 53.46 | |||||||||||
| 1916 | 25.94 | 44.00 | a | 45.90 | 50.38 | 52.28 | a | 62.27 | 66.33 | a | 69.23 | 61.58 | 50.20 | a | 35.75 | 29.23 | 49.42 | |||||||||
| 1917 | 25.18 | 34.11 | 37.32 | 46.83 | 51.15 | 60.70 | 73.42 | 71.31 | 57.97 | 49.84 | 44.07 | 36.85 | 49.06 | |||||||||||||
| 1918 | 37.21 | 37.70 | 44.21 | ----- | z | 54.37 | 70.27 | 69.35 | 68.71 | 65.18 | 53.77 | 40.10 | 32.22 | b | 52.10 | |||||||||||
| 1919 | 34.34 | 37.16 | 42.47 | 51.33 | 59.00 | 64.45 | 75.46 | f | 71.35 | g | 62.43 | a | 48.06 | 38.30 | 32.52 | 47.01 | ||||||||||
| 1920 | 36.50 | 38.71 | a | 42.03 | 47.57 | 55.29 | 64.70 | 69.53 | 72.68 | 63.53 | a | 49.35 | 41.00 | 36.37 | 51.44 | |||||||||||
| 1921 | 34.94 | 38.91 | 46.47 | 50.07 | a | 54.63 | a | 65.02 | 69.61 | 68.29 | 56.43 | 51.47 | 40.13 | 31.97 | 50.66 | |||||||||||
| 1922 | 26.08 | 33.43 | 39.60 | a | 44.63 | 55.11 | 64.68 | b | 70.97 | 65.76 | 61.73 | 46.93 | d | 38.80 | t | ----- | z | 50.89 | ||||||||
| 1923 | 34.60 | f | 34.27 | 43.26 | 48.23 | b | 58.45 | l | 59.41 | g | 70.03 | a | 69.78 | a | 63.93 | 49.77 | 42.41 | c | 32.96 | e | 50.52 | |||||
| 1924 | 32.03 | 41.67 | 40.87 | a | 51.70 | 72.03 | 68.68 | 72.21 | 70.76 | 62.23 | b | 50.15 | a | 41.64 | l | 31.55 | 53.99 | |||||||||
| 1925 | 38.52 | 37.67 | a | 37.50 | 45.48 | a | 51.39 | 61.15 | 75.50 | 70.82 | 59.17 | g | 50.03 | a | 41.43 | 36.30 | a | 49.62 | ||||||||
| 1926 | 34.98 | 43.66 | 50.06 | 57.68 | 61.15 | 73.25 | 75.13 | 71.65 | h | 61.15 | c | ----- | z | 47.17 | f | 33.73 | 54.53 | |||||||||
| 1927 | 37.69 | 39.48 | 42.98 | a | 47.83 | 54.60 | 65.73 | 72.66 | 69.56 | 60.48 | 52.92 | 45.03 | 31.56 | 51.71 | ||||||||||||
| 1928 | 36.16 | 39.78 | 47.74 | d | 48.67 | 61.73 | 63.45 | 73.60 | 70.26 | 63.42 | 53.42 | a | 41.67 | 32.90 | 52.73 | |||||||||||
| 1929 | 31.95 | 36.64 | 44.50 | 45.50 | 56.74 | 62.37 | 71.85 | 72.60 | 61.02 | 54.58 | a | 41.50 | d | 40.50 | 51.65 | |||||||||||
| 1930 | 26.52 | 42.61 | 46.08 | a | 51.40 | 53.29 | 64.27 | 71.74 | 69.98 | 61.07 | a | 52.61 | 43.20 | 33.73 | 51.37 | |||||||||||
| 1931 | ----- | z | ----- | z | 45.50 | 51.80 | 62.60 | 63.83 | a | 76.13 | 74.24 | 62.97 | 54.03 | 40.42 | 35.47 | a | 56.70 | |||||||||
| 1932 | 34.19 | 36.36 | 46.55 | 47.37 | 55.24 | 67.08 | 69.27 | 69.29 | 68.62 | 55.39 | 49.00 | 31.18 | a | 52.46 | ||||||||||||
| 1933 | 30.97 | 33.23 | 42.92 | 50.13 | 50.95 | 64.90 | 76.48 | 72.84 | 59.82 | 57.44 | 42.42 | 37.69 | 51.65 | |||||||||||||
| 1934 | 39.63 | 42.16 | 51.18 | a | 55.63 | 59.47 | 63.40 | 71.00 | 73.73 | 64.53 | 54.11 | 45.13 | 36.92 | 54.74 | ||||||||||||
| 1935 | 31.10 | 39.77 | 42.82 | 49.38 | 56.11 | 64.12 | 69.10 | 72.73 | 66.70 | 52.74 | 37.00 | 34.73 | 51.36 | |||||||||||||
| 1936 | 36.40 | 39.50 | 43.32 | 52.18 | 57.40 | 64.52 | 72.69 | 72.21 | 63.63 | 56.92 | 40.82 | 33.90 | 52.79 | |||||||||||||
| 1937 | 19.23 | a | 32.57 | 43.68 | 47.70 | 56.47 | 62.88 | 72.73 | 68.35 | 63.70 | 53.61 | 42.37 | 35.11 | 49.87 | ||||||||||||
| 1938 | 35.89 | 35.79 | 38.84 | 49.42 | 56.60 | 65.95 | 73.05 | a | 70.73 | 66.40 | ----- | z | 37.52 | f | 36.32 | 52.90 | ||||||||||
| 1939 | 35.21 | 35.66 | c | 46.09 | c | 54.79 | d | 59.48 | d | 66.30 | e | 74.47 | a | 74.65 | d | 64.90 | a | 53.74 | f | 41.67 | g | 41.10 | 55.26 | |||
| 1940 | 38.79 | 41.45 | 45.83 | b | 51.05 | 60.71 | 68.93 | b | 69.19 | b | 74.46 | e | 63.14 | e | 54.50 | m | 39.80 | 36.71 | 53.64 | |||||||
| 1941 | 40.79 | 43.55 | 47.42 | 49.28 | 57.74 | 60.60 | 73.81 | 68.68 | 60.02 | 51.65 | 43.18 | 36.66 | 52.78 | |||||||||||||
| 1942 | 33.32 | a | 37.52 | 41.76 | 48.08 | 51.66 | 60.00 | 72.97 | 72.77 | 64.85 | 56.54 | e | ----- | z | 38.68 | 52.56 | ||||||||||
| 1943 | 33.65 | e | 40.02 | e | 44.85 | d | ----- | z | ----- | z | 60.62 | f | 72.31 | e | 67.21 | e | 70.13 | d | 52.83 | m | 41.44 | d | 36.50 | f | 52.80 | |
| 1944 | 33.40 | e | 38.17 | e | 43.50 | e | 45.42 | e | 56.08 | e | 60.08 | d | 71.41 | b | 69.83 | d | 65.46 | d | 57.14 | i | 40.89 | h | 37.47 | l | 53.71 | |
| 1945 | 36.71 | g | 39.77 | d | 39.39 | c | 48.04 | e | 57.50 | d | 62.94 | d | 74.17 | d | 71.50 | c | 64.63 | 56.11 | 42.05 | 37.94 | 54.00 | |||||
| 1946 | 33.66 | 35.80 | 42.29 | 50.58 | 57.34 | 60.95 | 72.44 | 73.02 | 61.80 | 50.23 | 40.82 | 38.19 | 51.43 | |||||||||||||
| 1947 | 32.15 | 42.21 | 46.84 | 51.12 | 61.40 | 61.05 | a | 67.95 | 67.45 | 64.13 | 52.63 | 39.85 | 35.29 | 51.84 | ||||||||||||
| 1948 | 35.60 | 35.21 | 38.52 | 42.20 | 51.34 | 61.97 | 66.68 | 65.34 | 59.05 | 50.26 | 38.80 | 29.08 | 47.84 | |||||||||||||
| 1949 | 24.24 | 34.14 | 41.94 | 52.88 | 57.69 | 64.40 | 71.02 | 68.00 | 63.72 | 49.00 | 46.72 | 34.12 | a | 50.66 | ||||||||||||
| 1950 | 27.15 | d | 37.50 | 41.58 | 48.05 | 55.87 | 62.77 | 73.15 | 72.26 | 64.37 | 53.21 | 44.10 | 40.26 | 51.69 | ||||||||||||
| 1951 | 34.66 | 38.11 | 40.98 | 54.23 | 55.27 | 66.65 | 71.94 | 70.48 | 66.23 | 50.84 | 41.30 | 33.23 | 51.99 | |||||||||||||
| 1952 | 29.65 | 38.16 | 39.69 | 51.47 | 56.98 | 59.57 | 74.58 | 70.05 | 67.03 | 58.35 | 38.60 | 33.98 | 51.51 | |||||||||||||
| 1953 | 40.08 | 40.27 | 41.55 | a | 47.97 | 50.00 | 56.82 | 71.10 | 67.45 | 67.42 | 51.02 | 44.93 | 37.15 | 51.31 | ||||||||||||
| 1954 | 35.90 | 41.04 | 41.00 | 50.90 | 59.44 | 59.17 | 70.73 | 65.68 | 59.58 | 52.19 | 44.57 | 34.27 | 51.21 | |||||||||||||
| 1955 | 31.56 | 35.32 | 40.02 | 42.73 | 54.82 | 65.63 | 67.03 | a | 72.68 | 59.97 | j | 55.19 | 39.48 | 38.29 | 49.34 | |||||||||||
| 1956 | 37.19 | 33.16 | 42.08 | 50.93 | 57.05 | 61.35 | 74.25 | a | 68.73 | a | 64.10 | 51.58 | 41.03 | 33.75 | g | 52.86 | ||||||||||
| 1957 | 27.56 | 39.04 | 43.50 | 49.23 | 57.34 | 66.93 | 69.55 | 67.37 | 65.33 | 47.79 | 39.17 | 36.81 | 50.80 | |||||||||||||
| 1958 | 35.55 | 43.45 | 40.37 | 48.52 | 61.26 | 63.93 | 73.95 | 74.87 | 62.93 | 58.02 | 42.97 | 40.39 | 53.85 | |||||||||||||
| 1959 | 38.00 | 37.93 | 44.34 | 53.27 | 52.74 | 65.98 | 75.02 | a | 71.15 | 60.82 | 55.68 | 42.62 | 32.67 | a | 52.52 | |||||||||||
| 1960 | 34.77 | 38.45 | 47.68 | a | 48.72 | a | 53.77 | 68.82 | 75.90 | 69.45 | 65.95 | 54.82 | 42.33 | 36.65 | 53.11 | |||||||||||
| 1961 | 37.15 | 41.75 | 42.97 | a | 50.25 | 54.58 | 69.95 | 73.11 | 73.05 | 59.82 | 53.07 | a | 39.78 | 33.60 | 52.42 | |||||||||||
| 1962 | 28.48 | 37.43 | 40.48 | 53.45 | 52.29 | 63.80 | 70.79 | 68.69 | 66.27 | 51.85 | 45.05 | 36.16 | 51.23 | |||||||||||||
| 1963 | 32.16 | 45.27 | 41.68 | 44.42 | 58.66 | 62.72 | 66.85 | 69.56 | 66.82 | 52.76 | 41.53 | 36.63 | 51.59 | |||||||||||||
| 1964 | 34.06 | 37.05 | 40.77 | 48.28 | 55.56 | 62.33 | 71.02 | 69.34 | 60.83 | 55.52 | 39.78 | 37.92 | 51.04 | |||||||||||||
| 1965 | 36.02 | 39.43 | 45.23 | 49.40 | 54.44 | 63.17 | 70.89 | 68.73 | 61.12 | 56.44 | 44.42 | 32.71 | 51.83 | |||||||||||||
| 1966 | 34.37 | 36.20 | 43.77 | 52.65 | 60.65 | 62.88 | 68.47 | 72.60 | 64.13 | 53.53 | 43.82 | 36.60 | 52.47 | |||||||||||||
| 1967 | 35.85 | 40.25 | 40.94 | 41.02 | 57.05 | 64.77 | 74.63 | 74.73 | 67.20 | 51.97 | 44.58 | 27.42 | 51.70 | |||||||||||||
| 1968 | 31.85 | 43.24 | 44.39 | 47.60 | 54.73 | 64.02 | 72.84 | 66.90 | 64.80 | 52.53 | 41.40 | 33.13 | 51.45 | |||||||||||||
| 1969 | 31.11 | 35.61 | 43.05 | 48.53 | 61.31 | 66.08 | 72.13 | 70.32 | 65.20 | 48.71 | 42.37 | 38.40 | 51.90 | |||||||||||||
| 1970 | 38.58 | 41.66 | 44.05 | 44.75 | 58.06 | 68.15 | 74.50 | 72.85 | 60.20 | 51.16 | 44.07 | 34.15 | 52.68 | |||||||||||||
| 1971 | 35.63 | 38.29 | 40.61 | 46.77 | 55.40 | 62.20 | 72.98 | 74.05 | 60.88 | 49.08 | 40.53 | 31.73 | 50.68 | |||||||||||||
| 1972 | 32.53 | 39.81 | 47.40 | 46.65 | 58.63 | 66.57 | 74.52 | 72.11 | 60.77 | 52.35 | 40.17 | 28.29 | 51.65 | |||||||||||||
| 1973 | 33.47 | 40.70 | 40.81 | 49.77 | 61.50 | 66.55 | 73.94 | 71.69 | 64.02 | 51.81 | 41.88 | 39.50 | 52.97 | |||||||||||||
| 1974 | 31.74 | 36.98 | 42.87 | 46.05 | 55.69 | 68.18 | 70.37 | 71.87 | 68.37 | 53.53 | 41.95 | 35.66 | 51.94 | |||||||||||||
| 1975 | 31.11 | 36.95 | 40.06 | 42.17 | 56.84 | 63.80 | 70.76 | 67.84 | 67.52 | 50.29 | 38.95 | 36.48 | 50.23 | |||||||||||||
| 1976 | 35.23 | 38.22 | 40.85 | 45.73 | 58.42 | 61.60 | 71.58 | 64.92 | 65.12 | 54.34 | 43.77 | 33.47 | 51.10 | |||||||||||||
| 1977 | 27.15 | 40.39 | 39.85 | 51.55 | 50.06 | 69.33 | 71.15 | 74.50 | 62.95 | 52.89 | 40.67 | 37.82 | 51.53 | |||||||||||||
| 1978 | 39.55 | 40.48 | 48.03 | 46.80 | 54.74 | 64.83 | 71.71 | 69.77 | 57.88 | 56.55 | 39.03 | 30.35 | 51.65 | |||||||||||||
| 1979 | 32.73 | 38.93 | 46.10 | 48.08 | 58.24 | 65.53 | 71.56 | 69.00 | 66.40 | 55.97 | 39.88 | 37.02 | 52.45 | |||||||||||||
| 1980 | 36.52 | 42.88 | 42.31 | 50.67 | 55.50 | 59.65 | 72.68 | 69.65 | 63.60 | 54.82 | 42.47 | 37.42 | 52.35 | |||||||||||||
| 1981 | 38.32 | 39.82 | 43.60 | 50.82 | 56.35 | 60.55 | 70.61 | 73.45 | 65.52 | 50.16 | 44.05 | 39.15 | 52.70 | |||||||||||||
| 1982 | 32.21 | 37.93 | 41.31 | 46.02 | 57.68 | 64.10 | 69.34 | 70.27 | 59.15 | 50.92 | 39.17 | 32.87 | 50.08 | |||||||||||||
| 1983 | 36.42 | 40.30 | 44.11 | 45.85 | 57.76 | 61.35 | 65.81 | 70.50 | 61.82 | 53.85 | 41.07 | 36.21 | 51.25 | |||||||||||||
| 1984 | 35.39 | 39.90 | 46.03 | 47.30 | 56.71 | 62.30 | 74.03 | 71.42 | 62.27 | 47.90 | 39.18 | 32.00 | 51.20 | |||||||||||||
| 1985 | ----- | z | 38.25 | 40.60 | 54.20 | 56.56 | 67.12 | ----- | z | 68.76 | 57.92 | 50.61 | 35.23 | 34.65 | 50.39 | |||||||||||
| 1986 | 41.94 | ----- | z | 48.85 | ----- | z | 56.58 | 69.70 | 69.66 | 74.81 | 58.15 | 53.74 | 43.03 | 35.92 | 55.24 | |||||||||||
| 1987 | 34.13 | 39.84 | 43.06 | 54.85 | 60.31 | ----- | z | 67.89 | ----- | z | ----- | z | 59.39 | 42.53 | 34.44 | 48.49 | ||||||||||
| 1988 | 31.79 | 41.09 | 44.56 | 51.00 | 53.16 | 62.48 | 73.44 | 71.60 | 63.52 | 58.40 | 40.83 | 32.97 | 52.07 | |||||||||||||
| 1989 | 30.19 | 32.14 | 42.40 | ----- | z | 54.40 | ----- | z | 68.00 | 66.71 | 62.85 | 50.81 | 40.93 | 34.63 | 48.31 | |||||||||||
| 1990 | 34.90 | 33.11 | 44.53 | 55.18 | 53.53 | 62.12 | 72.74 | 69.37 | 64.68 | 51.95 | 38.38 | 28.56 | 50.76 | |||||||||||||
| 1991 | 34.48 | 44.18 | 40.81 | 46.65 | 52.13 | 60.50 | 73.77 | 71.68 | 67.92 | 56.94 | 42.78 | 33.98 | 52.15 | |||||||||||||
| 1992 | 35.65 | 42.71 | 46.94 | ----- | z | 63.31 | 67.00 | 70.84 | 72.52 | 63.15 | 54.45 | 40.30 | 31.69 | 53.50 | ||||||||||||
| 1993 | 30.11 | 34.95 | 46.53 | 46.55 | 56.11 | 59.50 | 63.82 | 67.31 | ----- | z | 53.15 | 37.53 | 33.89 | 48.13 | ||||||||||||
| 1994 | 36.34 | 37.12 | 46.48 | 50.88 | 58.15 | 63.58 | 74.95 | 69.89 | 65.42 | 50.48 | 33.97 | 33.73 | 51.75 | |||||||||||||
| 1995 | 38.84 | 44.46 | 41.63 | 45.63 | 55.69 | 60.25 | 67.74 | 67.95 | 66.25 | 53.42 | 47.40 | 40.45 | 52.48 | |||||||||||||
| 1996 | 36.58 | 42.47 | 45.53 | 49.63 | 55.06 | 64.57 | 75.19 | 72.00 | 61.67 | 52.16 | 43.37 | 37.69 | 52.99 | |||||||||||||
| 1997 | 35.60 | 38.89 | 46.02 | 48.42 | 61.26 | 62.17 | 69.98 | 70.74 | 62.70 | 50.87 | 43.37 | 32.35 | 51.86 | |||||||||||||
| 1998 | 38.15 | 38.57 | 43.89 | 47.55 | 50.50 | 62.73 | 73.48 | 72.77 | 66.38 | 50.66 | 40.28 | 30.77 | 51.31 | |||||||||||||
| 1999 | 35.53 | 36.32 | 41.35 | 46.63 | 55.87 | 62.22 | 69.25 | a | 68.15 | 65.03 | 54.50 | 45.85 | 35.31 | 51.33 | ||||||||||||
| 2000 | 36.56 | 41.29 | 43.11 | 52.50 | 55.63 | 67.16 | a | 69.81 | 71.55 | 62.13 | 51.50 | 36.42 | 35.26 | 51.91 | ||||||||||||
| 2001 | 35.63 | 36.23 | 45.74 | 46.48 | a | 62.06 | 63.70 | 71.53 | 72.82 | 64.88 | 53.92 | a | 41.52 | 35.79 | 52.53 | |||||||||||
| 2002 | 33.81 | 39.71 | 41.60 | 50.52 | 54.68 | 65.63 | 74.35 | 68.76 | 63.55 | 50.32 | 41.08 | 35.90 | 51.66 | |||||||||||||
| 2003 | 39.74 | 37.77 | 43.90 | 44.00 | 55.13 | 66.27 | 74.03 | 69.56 | 64.57 | 55.03 | 37.03 | 37.21 | 52.02 | |||||||||||||
| 2004 | 35.02 | 38.91 | 47.98 | 51.38 | 56.03 | 66.28 | 73.92 | 72.26 | 62.53 | 52.40 | 40.33 | 36.15 | 52.77 | |||||||||||||
| 2005 | 35.45 | 40.64 | 46.05 | 48.35 | 57.77 | 60.47 | 75.32 | 73.74 | 61.82 | 52.79 | 40.92 | 35.32 | 52.39 | |||||||||||||
| 2006 | 36.79 | 39.11 | 39.02 | 49.10 | 59.76 | 68.68 | 76.56 | 70.37 | 64.18 | 52.44 | 42.78 | 35.55 | a | 52.86 | ||||||||||||
| 2007 | 31.82 | 38.36 | 46.10 | 50.58 | 58.77 | 65.53 | 73.40 | 71.97 | 63.28 | 48.95 | 41.97 | 33.19 | 51.99 | |||||||||||||
| 2008 | 30.79 | 36.48 | 41.02 | 45.93 | 57.48 | 63.83 | 73.00 | 71.79 | 64.85 | 53.08 | 43.52 | 32.02 | 51.15 | |||||||||||||
| 2009 | 35.05 | 38.61 | 41.63 | 48.88 | 60.02 | 64.87 | 74.37 | 70.37 | 67.02 | ----- | z | 39.53 | 31.34 | 51.97 | ||||||||||||
| 2010 | 39.45 | 39.75 | 43.29 | 44.65 | 50.66 | 62.52 | 73.98 | 70.74 | 63.22 | 54.56 | 39.27 | 38.19 | 51.69 | |||||||||||||
| 2011 | 34.94 | 35.93 | 41.27 | 45.67 | 50.45 | 60.19 | a | 69.39 | 71.44 | d | 67.08 | e | 51.05 | a | 40.05 | 33.42 | a | 50.07 | ||||||||
| 2012 | 34.53 | 37.74 | 40.68 | 50.05 | 57.50 | 61.90 | 71.50 | 74.03 | 66.77 | 54.42 | 41.95 | 34.27 | 52.11 | |||||||||||||
| 2013 | 30.29 | 36.39 | 44.66 | 47.75 | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 27.00 | z | 37.11 | ||||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 34.10 | 38.70 | 43.40 | 48.92 | 56.48 | 63.94 | 71.72 | 70.68 | 63.25 | 52.68 | 41.47 | 34.88 | 51.68 | |||||||||||||
| S.D. | 3.90 | 2.95 | 2.83 | 3.14 | 3.46 | 2.87 | 2.65 | 2.70 | 2.84 | 2.61 | 2.57 | 2.91 | 1.03 | |||||||||||||
| SKEW | -0.93 | -0.05 | 0.25 | 0.03 | 0.76 | 0.45 | -0.35 | 0.68 | -0.18 | 0.21 | -0.04 | -0.22 | -0.53 | |||||||||||||
| MAX | 41.94 | 45.27 | 51.18 | 57.68 | 72.03 | 73.25 | 77.45 | 83.37 | 70.13 | 59.39 | 49.00 | 41.10 | 54.74 | |||||||||||||
| MIN | 19.23 | 32.14 | 37.32 | 41.02 | 50.00 | 56.82 | 63.82 | 64.73 | 56.43 | 46.93 | 33.97 | 27.42 | 47.84 | |||||||||||||
| NO YRS | 104 | 108 | 110 | 104 | 107 | 105 | 107 | 106 | 103 | 101 | 102 | 104 | 81 | |||||||||||||