| YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
| 1889 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.45 | a | 0.02 | 0.80 | 0.38 | 2.83 | 4.48 | |||||
| 1890 | 0.58 | 1.28 | 0.68 | 1.12 | 0.00 | 0.01 | 0.28 | 0.50 | 0.26 | 0.18 | 1.05 | 0.55 | 6.49 | |||||||||||||
| 1891 | 0.00 | 0.00 | 0.00 | q | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |||
| 1892 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | |
| 1893 | 0.72 | 0.43 | 0.53 | 0.34 | 0.76 | 0.00 | 0.89 | 1.13 | 1.28 | 0.05 | 1.46 | 0.77 | 8.36 | |||||||||||||
| 1894 | 0.33 | 0.60 | 0.74 | 0.58 | 0.68 | 0.24 | 0.02 | 0.66 | 0.69 | 0.79 | 0.00 | z | 1.13 | 6.46 | ||||||||||||
| 1895 | 0.64 | 0.89 | 1.57 | 0.02 | 0.35 | 0.12 | 1.14 | 0.11 | 0.36 | 0.47 | 1.38 | 0.32 | 7.37 | |||||||||||||
| 1896 | 0.45 | 0.00 | 0.18 | 0.11 | 0.17 | 0.03 | 0.66 | 0.51 | 5.97 | 0.83 | 0.30 | 0.32 | 9.53 | |||||||||||||
| 1897 | 1.22 | 2.12 | 2.43 | 0.72 | 0.38 | 0.14 | 0.80 | 0.60 | 1.46 | 2.52 | 0.48 | 1.82 | 14.69 | |||||||||||||
| 1898 | 0.77 | 0.13 | 0.44 | 0.25 | 1.58 | 0.16 | 0.17 | 0.35 | 0.00 | 0.00 | 0.25 | 0.22 | 4.32 | |||||||||||||
| 1899 | 0.48 | 0.15 | 0.57 | 0.37 | 0.39 | 0.76 | 0.55 | 2.04 | 0.03 | 1.06 | 0.11 | 1.13 | 7.64 | |||||||||||||
| 1900 | 0.42 | 0.12 | 0.04 | 1.03 | 0.03 | 0.26 | 0.02 | 0.37 | 1.43 | 0.22 | 0.53 | 0.14 | 4.61 | |||||||||||||
| 1901 | 0.32 | 0.58 | 0.56 | 0.75 | 1.19 | 0.20 | 0.39 | 1.47 | 0.00 | 1.41 | 0.02 | 0.28 | 7.17 | |||||||||||||
| 1902 | 0.40 | 0.49 | 0.91 | 0.40 | 0.84 | 0.43 | 0.30 | 0.53 | 1.26 | 0.00 | 1.94 | 0.40 | 7.90 | |||||||||||||
| 1903 | 0.12 | 0.90 | 0.91 | 0.69 | 0.84 | 0.70 | 0.84 | 0.03 | 1.27 | 0.28 | 0.00 | 0.05 | 6.63 | |||||||||||||
| 1904 | 0.15 | 0.41 | 0.90 | 0.08 | 1.41 | 0.26 | 0.37 | 0.97 | 0.25 | 0.63 | 0.00 | 0.29 | 5.72 | |||||||||||||
| 1905 | 1.90 | 1.35 | 1.51 | 0.66 | 2.28 | 0.00 | 0.53 | 0.15 | 1.95 | 0.12 | 1.55 | 0.11 | 12.11 | |||||||||||||
| 1906 | 0.57 | 0.21 | 1.88 | 1.72 | 1.79 | 0.00 | 0.77 | 0.58 | 2.08 | 0.23 | 1.75 | 1.57 | 13.15 | |||||||||||||
| 1907 | 1.18 | 0.56 | 0.92 | 0.36 | 1.40 | 0.37 | 0.81 | 1.73 | 0.60 | 0.68 | 0.27 | 0.39 | 9.27 | |||||||||||||
| 1908 | 0.34 | 1.71 | 0.95 | 0.36 | 0.41 | 0.20 | 1.54 | 1.29 | 0.73 | 2.49 | 0.86 | 1.49 | 12.37 | |||||||||||||
| 1909 | 0.94 | 0.70 | 0.56 | 1.16 | 0.09 | 0.00 | 0.50 | 0.84 | 1.17 | 0.18 | 1.56 | 2.02 | 9.72 | |||||||||||||
| 1910 | 0.71 | 0.03 | 1.31 | 0.03 | 0.00 | 1.32 | 0.25 | 0.78 | 0.84 | 1.17 | 1.12 | 1.50 | 9.06 | |||||||||||||
| 1911 | 1.00 | 1.11 | 0.82 | 0.47 | 0.00 | 0.60 | 1.22 | 0.75 | 1.72 | 2.60 | 0.21 | 0.60 | 11.10 | |||||||||||||
| 1912 | 0.16 | 0.26 | 2.76 | 0.65 | 0.98 | 0.83 | 0.90 | 0.30 | 0.08 | 2.95 | 0.65 | 0.35 | 10.87 | |||||||||||||
| 1913 | 0.94 | 1.49 | 0.10 | 0.35 | 0.19 | 0.40 | 0.37 | 0.29 | 1.78 | 0.05 | 1.39 | 1.90 | 9.25 | |||||||||||||
| 1914 | 1.32 | 0.57 | 0.44 | 1.07 | 1.23 | 1.20 | 2.00 | 0.77 | 0.31 | 1.66 | 0.02 | 0.31 | 10.90 | |||||||||||||
| 1915 | 2.31 | 1.02 | 0.25 | 1.02 | 1.93 | 0.17 | 0.51 | 0.43 | 1.08 | 0.14 | 0.88 | 5.75 | 15.49 | |||||||||||||
| 1916 | 3.52 | 0.45 | 1.17 | 0.45 | 0.90 | 0.00 | 0.53 | 0.90 | 0.73 | 4.20 | 0.05 | 0.33 | 13.23 | |||||||||||||
| 1917 | 1.66 | 0.10 | 0.54 | 2.78 | 1.47 | 0.17 | 0.55 | 0.03 | 0.78 | 0.02 | 0.13 | 0.06 | 8.29 | |||||||||||||
| 1918 | 1.65 | 0.22 | 1.38 | 1.04 | 0.11 | 1.15 | 6.63 | 0.56 | 0.72 | 0.00 | z | 0.00 | z | 0.00 | z | 13.46 | ||||||||||
| 1919 | 0.00 | z | 0.00 | z | 0.35 | 0.20 | 0.26 | 0.00 | 1.03 | 0.55 | 0.87 | 0.51 | 1.48 | 0.23 | 5.48 | |||||||||||
| 1920 | 0.59 | 1.46 | 0.54 | 1.30 | 0.08 | 0.44 | 0.26 | 0.79 | 0.32 | 1.73 | 0.40 | 0.44 | 8.35 | |||||||||||||
| 1921 | 0.68 | 0.26 | 0.37 | 1.45 | 1.35 | b | 0.37 | 1.12 | 2.33 | 0.14 | 0.51 | 0.65 | 1.59 | 10.82 | ||||||||||||
| 1922 | 0.61 | 0.99 | 0.51 | 1.04 | 0.57 | 0.33 | 0.21 | 1.16 | 0.03 | 0.01 | 0.69 | 0.52 | 6.67 | |||||||||||||
| 1923 | 0.17 | 0.15 | 1.30 | 1.00 | 0.45 | 0.00 | 0.79 | 0.37 | 1.07 | 0.61 | 1.15 | 0.80 | 7.86 | |||||||||||||
| 1924 | 0.45 | 0.45 | 1.26 | 0.73 | 0.69 | 0.00 | 1.16 | 0.53 | 1.30 | 1.03 | 0.20 | 3.16 | 10.96 | |||||||||||||
| 1925 | 0.51 | 0.60 | 0.32 | 0.52 | 0.03 | 0.85 | 1.10 | 1.86 | 1.76 | 2.13 | 0.46 | 0.46 | 10.60 | |||||||||||||
| 1926 | 0.02 | 0.65 | 1.27 | 1.09 | 2.22 | 0.57 | 1.33 | 0.37 | 0.90 | 0.56 | 0.14 | 2.17 | 11.29 | |||||||||||||
| 1927 | 1.01 | 2.50 | 2.01 | 0.33 | 0.06 | 2.35 | 1.30 | 0.66 | 3.55 | 1.14 | 0.44 | 0.61 | 15.96 | |||||||||||||
| 1928 | 0.11 | 0.00 | 0.69 | 0.12 | 1.56 | 0.23 | 1.39 | 0.80 | 0.12 | 3.50 | 1.98 | 0.31 | 10.81 | |||||||||||||
| 1929 | 0.74 | 1.09 | 1.09 | 1.14 | 1.85 | 0.10 | 0.78 | 0.83 | 1.73 | 0.14 | 0.73 | 0.08 | 10.30 | |||||||||||||
| 1930 | 2.55 | 0.99 | 0.41 | 1.81 | 0.25 | 0.53 | 1.14 | 1.17 | 1.36 | 0.36 | 0.63 | 0.00 | 11.20 | |||||||||||||
| 1931 | 0.00 | 0.01 | 0.42 | 0.02 | 0.32 | 0.38 | 0.30 | 0.20 | 1.66 | 1.00 | 0.85 | 0.71 | 5.87 | |||||||||||||
| 1932 | 0.21 | 0.53 | 0.68 | 0.99 | 0.10 | 0.70 | 1.67 | 1.99 | 0.20 | 0.10 | 0.00 | 0.92 | 8.09 | |||||||||||||
| 1933 | 0.44 | 0.00 | 0.49 | 0.79 | 1.21 | 0.00 | 1.74 | 0.61 | 0.50 | d | 0.30 | 1.65 | 0.39 | 8.12 | ||||||||||||
| 1934 | 0.65 | 1.49 | 0.00 | 0.41 | 1.26 | 0.04 | 0.17 | 1.37 | 0.44 | 0.00 | 1.09 | 0.86 | 7.78 | |||||||||||||
| 1935 | 1.24 | 1.20 | 1.11 | 1.04 | 0.58 | 0.00 | z | 0.00 | z | 0.00 | z | 0.41 | v | 0.12 | a | 0.30 | 1.17 | 6.76 | ||||||||
| 1936 | 0.16 | 1.07 | 0.52 | 0.27 | 0.21 | 0.25 | 1.17 | 1.62 | 0.02 | a | 0.36 | b | 0.10 | 1.40 | 7.15 | |||||||||||
| 1937 | 0.25 | 0.52 | 1.42 | 0.05 | 0.19 | 0.39 | 2.35 | 1.55 | a | 0.83 | 0.48 | 0.41 | 0.75 | 9.19 | ||||||||||||
| 1938 | 0.38 | b | 0.93 | 1.01 | 0.39 | b | 1.00 | 0.56 | a | 0.00 | 0.84 | 0.91 | a | 0.97 | e | 0.18 | 0.97 | 8.14 | ||||||||
| 1939 | 0.78 | 0.61 | 1.48 | 0.00 | 0.73 | a | 0.02 | 0.00 | 1.59 | 3.13 | f | 1.42 | 0.44 | 0.03 | 7.10 | |||||||||||
| 1940 | 0.82 | 1.27 | 0.41 | 1.06 | 0.03 | 0.38 | 1.17 | 0.44 | f | 3.46 | 2.18 | 1.05 | 1.26 | 13.09 | ||||||||||||
| 1941 | 0.62 | 0.91 | 1.64 | 1.76 | 0.82 | 1.22 | 0.44 | 0.77 | a | 1.12 | 4.40 | 1.35 | 0.37 | 15.42 | ||||||||||||
| 1942 | 0.32 | 1.02 | 0.60 | 1.53 | 1.17 | 0.00 | 0.11 | 0.37 | 0.64 | 0.79 | 0.08 | 0.12 | 6.75 | |||||||||||||
| 1943 | 0.50 | 0.24 | 1.38 | 0.22 | 0.55 | 1.16 | 0.56 | 0.94 | 0.61 | 0.87 | 0.95 | 0.57 | 8.55 | |||||||||||||
| 1944 | 0.46 | 0.69 | 0.53 | 1.86 | 0.45 | 1.33 | 0.02 | 0.02 | 0.00 | 0.52 | 0.78 | 0.22 | 6.88 | |||||||||||||
| 1945 | 0.68 | 0.42 | 0.00 | z | 0.69 | 0.13 | 1.50 | 0.82 | 0.88 | 0.00 | 1.98 | 0.25 | 0.84 | 8.19 | ||||||||||||
| 1946 | 0.23 | 0.05 | 0.33 | 1.39 | 1.02 | 0.06 | a | 0.13 | a | 0.21 | 0.00 | 1.12 | a | 1.34 | 0.76 | m | 5.88 | |||||||||
| 1947 | 0.27 | 0.43 | 0.29 | 0.80 | 0.37 | t | 0.84 | 0.04 | 2.62 | 0.37 | 2.74 | 0.44 | 1.50 | 10.34 | ||||||||||||
| 1948 | 0.05 | 1.21 | 1.00 | 0.72 | 0.08 | 1.20 | 0.43 | 0.74 | 0.19 | 0.67 | 0.56 | 1.07 | 7.92 | |||||||||||||
| 1949 | 1.59 | 0.23 | 1.69 | 0.42 | 0.87 | 1.09 | 0.49 | 0.48 | 0.15 | 2.34 | 0.04 | 0.39 | 9.78 | |||||||||||||
| 1950 | 0.91 | 0.58 | 0.30 | 0.75 | 1.04 | 0.00 | 0.48 | 0.00 | 1.62 | 0.00 | 0.12 | 0.00 | 5.80 | |||||||||||||
| 1951 | 0.52 | 0.40 | 0.05 | 1.81 | 0.55 | 0.09 | 0.16 | 1.26 | 0.25 | 1.12 | 0.87 | 1.47 | 8.55 | |||||||||||||
| 1952 | 0.97 | 0.17 | 0.78 | 1.21 | 0.34 | 0.00 | z | 0.43 | 0.56 | 0.00 | z | 0.00 | 0.66 | 0.55 | 5.67 | |||||||||||
| 1953 | 0.38 | 0.23 | 0.68 | 1.11 | 0.15 | 0.01 | 0.48 | 1.29 | 0.00 | 2.25 | 0.95 | 0.87 | a | 8.40 | ||||||||||||
| 1954 | 0.36 | 0.11 | 0.83 | 0.00 | c | 1.00 | 0.00 | 0.00 | 0.00 | a | 0.93 | 0.00 | a | 1.28 | 0.28 | 4.79 | ||||||||||
| 1955 | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | w | 0.20 | 0.23 | 0.11 | 0.66 | 0.13 | 0.01 | 0.89 | 0.20 | 2.43 | |||||||||
| 1956 | 0.52 | 0.00 | z | 0.00 | z | 0.20 | 0.12 | 0.00 | 0.52 | 0.55 | 0.00 | 0.30 | 0.06 | 0.37 | 2.64 | |||||||||||
| 1957 | 1.40 | 0.39 | 0.41 | 1.71 | 1.93 | 0.27 | 0.83 | 2.23 | 0.00 | z | 0.00 | z | 1.87 | 0.31 | 11.35 | |||||||||||
| 1958 | 0.42 | 1.37 | 0.57 | 0.35 | 0.34 | 0.02 | 0.07 | 0.85 | 0.82 | 0.15 | 0.12 | 0.00 | 5.08 | |||||||||||||
| 1959 | 0.28 | 1.19 | 0.01 | 0.46 | 0.05 | 0.03 | 0.12 | 0.99 | 0.54 | 0.70 | 0.12 | 2.13 | 6.62 | |||||||||||||
| 1960 | 0.15 | 0.91 | 0.62 | 0.43 | 0.47 | 0.03 | 0.22 | 0.36 | 0.81 | 0.70 | 0.62 | 0.36 | 5.68 | |||||||||||||
| 1961 | 0.24 | 0.08 | 1.17 | 1.38 | 1.33 | 0.00 | 0.17 | 2.15 | 2.43 | 1.45 | 0.29 | 0.32 | 11.01 | |||||||||||||
| 1962 | 0.44 | 1.16 | 0.15 | 0.74 | 0.08 | 1.35 | 0.45 | 0.00 | 2.24 | 0.76 | 0.54 | 0.83 | 8.74 | |||||||||||||
| 1963 | 0.49 | 0.45 | 0.62 | 0.34 | 0.00 | 0.22 | a | 0.92 | 1.56 | 0.64 | 0.57 | 0.16 | 0.04 | 6.01 | ||||||||||||
| 1964 | 0.09 | 0.07 | 0.67 | 0.99 | 0.78 | 0.53 | 0.06 | 0.25 | 0.36 | 0.00 | z | 0.00 | z | 0.42 | 4.22 | |||||||||||
| 1965 | 0.19 | 0.25 | 0.80 | 1.26 | 1.22 | 0.57 | 2.25 | 0.88 | 0.75 | 1.96 | 1.14 | 0.88 | 12.15 | |||||||||||||
| 1966 | 0.17 | 0.54 | 0.06 | 0.97 | 0.68 | 0.03 | 0.37 | 0.81 | 1.09 | 0.37 | 0.37 | 0.57 | 6.03 | |||||||||||||
| 1967 | 0.07 | 0.10 | 0.25 | 0.00 | 1.39 | 1.60 | 1.52 | 0.53 | 0.53 | 0.31 | 0.66 | 1.32 | 8.28 | |||||||||||||
| 1968 | 0.41 | 0.41 | 0.39 | 1.16 | 0.38 | 0.07 | 1.02 | 2.10 | 0.12 | 0.52 | 0.38 | 0.31 | 7.27 | |||||||||||||
| 1969 | 1.05 | 0.81 | 0.53 | 0.14 | 0.57 | 2.06 | 0.90 | 1.81 | 0.65 | 0.82 | 0.66 | 0.21 | 10.21 | |||||||||||||
| 1970 | 0.16 | 0.04 | 1.17 | 0.76 | 0.09 | 0.83 | 0.02 | 0.32 | 0.33 | 0.95 | 0.63 | 0.36 | 5.66 | |||||||||||||
| 1971 | 0.20 | 0.22 | 0.07 | 0.85 | 0.31 | 0.00 | 0.14 | 0.55 | 0.23 | 3.15 | 0.49 | 1.08 | 7.29 | |||||||||||||
| 1972 | 0.00 | 0.00 | 0.00 | 0.57 | 0.03 | 0.51 | 0.17 | 0.00 | z | 0.89 | 3.77 | 0.96 | 1.51 | 8.41 | ||||||||||||
| 1973 | 1.17 | 0.07 | 0.99 | 1.55 | 1.46 | 0.97 | 0.23 | 0.41 | 0.45 | 1.07 | 1.16 | 0.43 | 9.96 | |||||||||||||
| 1974 | 1.47 | 0.15 | 0.14 | 1.79 | 0.00 | 0.01 | 0.50 | 0.16 | 0.03 | 1.12 | 0.75 | 0.44 | 6.56 | |||||||||||||
| 1975 | 0.34 | 0.28 | 3.19 | 1.41 | 1.54 | 0.44 | 0.85 | 0.05 | 0.53 | 0.94 | 0.32 | 0.98 | 10.87 | |||||||||||||
| 1976 | 0.10 | 0.84 | 0.81 | 0.47 | 1.16 | 0.08 | 0.54 | 0.97 | 0.82 | 0.15 | 0.20 | 0.00 | 6.14 | |||||||||||||
| 1977 | 0.81 | 0.07 | 0.25 | 0.94 | 0.15 | 0.50 | 0.00 | z | 1.15 | 1.13 | 0.25 | 0.59 | 1.21 | 7.05 | ||||||||||||
| 1978 | 2.19 | 1.01 | 0.67 | 2.66 | 0.40 | 0.00 | 0.11 | 0.10 | 0.07 | 0.11 | 1.28 | 1.86 | 10.46 | |||||||||||||
| 1979 | 1.28 | 0.78 | 1.57 | 0.52 | 1.75 | 0.22 | 0.11 | 0.26 | 0.17 | 0.17 | 0.71 | 0.59 | 8.13 | |||||||||||||
| 1980 | 0.82 | 1.27 | 2.67 | 1.12 | 1.79 | 0.10 | 0.65 | 0.81 | 1.02 | 1.55 | 0.60 | 0.30 | 12.70 | |||||||||||||
| 1981 | 0.66 | 0.07 | 1.30 | 1.14 | 0.22 | 0.45 | 0.77 | 0.87 | 1.01 | 2.78 | 0.53 | 0.28 | 10.08 | |||||||||||||
| 1982 | 0.25 | 0.19 | 0.66 | 0.00 | 0.10 | 0.05 | 0.43 | 1.85 | 1.52 | 0.18 | 0.64 | 0.75 | 6.62 | |||||||||||||
| 1983 | 0.27 | 0.73 | 1.37 | 0.56 | 0.73 | 1.83 | 4.52 | 0.74 | 1.22 | 1.07 | 2.40 | 0.98 | 16.42 | |||||||||||||
| 1984 | 0.25 | f | 0.43 | 0.94 | 2.11 | 0.03 | 1.31 | 0.94 | 0.83 | 0.35 | 2.45 | 0.38 | 1.20 | 10.97 | ||||||||||||
| 1985 | 0.62 | 0.16 | 1.40 | 2.12 | 0.78 | 0.22 | 1.10 | 0.00 | 1.66 | 1.98 | 1.18 | 0.18 | 11.40 | |||||||||||||
| 1986 | 0.10 | 0.18 | 0.42 | 1.52 | 1.58 | 0.21 | 0.99 | 0.38 | 0.76 | 2.49 | 0.42 | 0.61 | 9.66 | |||||||||||||
| 1987 | 0.37 | 1.38 | 1.04 | 0.51 | 0.70 | 0.01 | 2.50 | 1.11 | 0.15 | 1.36 | 2.11 | 0.87 | 12.11 | |||||||||||||
| 1988 | 0.90 | 0.29 | 0.69 | 0.65 | 1.49 | 0.00 | 0.17 | 1.66 | 0.54 | 0.40 | 0.97 | 0.37 | 8.13 | |||||||||||||
| 1989 | 0.79 | 0.58 | 0.73 | 0.07 | 0.17 | 0.05 | 0.64 | 1.44 | 0.09 | 0.33 | 0.01 | 0.00 | 4.90 | |||||||||||||
| 1990 | 0.81 | 0.33 | 0.67 | 0.00 | z | 0.00 | z | 0.19 | 1.13 | c | 1.07 | 0.82 | b | 0.70 | 0.88 | g | 0.52 | 6.24 | ||||||||
| 1991 | 0.59 | c | 0.30 | 0.80 | 0.23 | 0.10 | a | 0.00 | 0.48 | 0.98 | 0.99 | 1.23 | a | 0.00 | z | 0.00 | z | 5.70 | ||||||||
| 1992 | 0.00 | b | 0.48 | b | 0.92 | 0.24 | b | 0.91 | 0.05 | 1.19 | 0.37 | 0.75 | 0.64 | 0.60 | 0.94 | 7.09 | ||||||||||
| 1993 | 2.06 | 1.04 | 0.66 | 0.62 | 2.60 | 0.04 | 0.07 | 1.04 | 0.05 | 1.93 | 0.22 | 0.38 | 10.71 | |||||||||||||
| 1994 | 0.36 | 0.57 | 0.02 | 1.16 | 0.44 | 0.13 | 0.11 | 0.91 | 0.72 | 0.67 | 0.94 | 0.73 | 6.76 | |||||||||||||
| 1995 | 0.61 | 0.00 | z | 1.50 | 0.59 | 2.62 | 1.18 | 1.12 | 0.96 | 0.21 | 0.01 | 0.48 | 0.19 | 9.47 | ||||||||||||
| 1996 | 0.33 | 0.82 | 0.81 | 0.71 | 0.72 | 0.24 | 0.19 | 0.46 | 1.12 | 1.55 | 1.17 | 0.35 | 8.47 | |||||||||||||
| 1997 | 0.76 | 0.93 | 0.24 | 1.33 | 0.94 | 0.18 | 0.92 | 1.89 | 3.36 | 1.17 | 0.78 | 0.60 | 13.10 | |||||||||||||
| 1998 | 0.52 | 0.52 | 1.06 | 0.57 | 0.60 | c | 0.52 | a | 0.28 | d | 0.12 | e | 1.03 | 2.79 | 0.67 | 0.34 | a | 9.02 | ||||||||
| 1999 | 0.42 | 0.34 | 0.14 | 1.92 | 0.17 | 1.30 | b | 4.19 | 2.01 | 0.59 | 0.01 | 0.06 | 0.41 | 11.56 | ||||||||||||
| 2000 | 0.99 | 0.59 | 1.14 | a | 0.19 | 0.44 | 0.42 | 0.72 | 1.13 | a | 0.16 | b | 1.70 | 0.46 | a | 0.57 | 8.51 | |||||||||
| 2001 | 1.04 | b | 0.98 | 0.39 | 0.76 | 1.06 | 0.27 | 2.25 | 2.34 | 0.17 | 0.22 | 0.00 | z | 0.73 | a | 10.21 | ||||||||||
| 2002 | 0.40 | b | 0.10 | a | 0.20 | c | 0.34 | 0.11 | a | 0.06 | 0.39 | a | 0.55 | 2.11 | 0.61 | 0.41 | a | 0.28 | a | 5.56 | ||||||
| 2003 | 0.25 | 1.26 | 0.85 | 0.15 | a | 0.92 | 0.07 | 0.69 | a | 1.06 | 0.38 | 0.21 | 0.82 | 1.04 | 7.70 | |||||||||||
| 2004 | 0.44 | 0.75 | 0.02 | 2.02 | 0.26 | 0.34 | 0.08 | 0.24 | 1.20 | 0.66 | 1.77 | 0.68 | 8.46 | |||||||||||||
| 2005 | 1.58 | 1.00 | 1.71 | 0.10 | 0.26 | 1.22 | a | 0.01 | 1.19 | 1.03 | 0.67 | 0.63 | 0.38 | 9.78 | ||||||||||||
| 2006 | 0.58 | 0.07 | 1.74 | 0.12 | 0.03 | 0.35 | 1.29 | 0.65 | 1.41 | 4.66 | 0.47 | 0.34 | 11.71 | |||||||||||||
| 2007 | 0.81 | a | 0.35 | a | 0.29 | 2.38 | 0.53 | 0.02 | 1.81 | 0.94 | 1.45 | a | 0.09 | 0.12 | 1.87 | 10.66 | ||||||||||
| 2008 | 0.44 | 1.06 | 0.23 | 0.76 | 0.57 | 1.18 | 0.45 | 0.52 | 0.13 | 0.41 | 1.01 | 0.99 | 7.75 | |||||||||||||
| 2009 | 0.16 | 0.17 | 0.22 | 0.80 | 1.68 | 0.43 | 0.03 | 0.34 | 0.21 | 0.79 | 0.41 | 1.79 | 7.03 | |||||||||||||
| 2010 | 0.84 | 1.58 | 1.63 | 0.39 | 0.32 | 0.49 | 0.28 | 1.38 | 0.94 | 1.43 | 0.62 | 1.57 | 11.47 | |||||||||||||
| 2011 | 0.00 | 0.17 | 0.09 | 1.12 | 1.47 | 0.38 | 2.38 | 0.34 | 1.00 | 0.93 | 0.72 | 0.44 | 9.04 | |||||||||||||
| 2012 | 0.30 | 0.45 | 0.26 | a | 0.37 | 0.00 | 0.00 | 0.92 | 0.66 | 0.23 | 0.69 | 0.26 | 0.99 | 5.13 | ||||||||||||
| 2013 | 0.79 | 0.27 | 0.11 | d | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.00 | z | 0.10 | z | 1.17 | |||
| Period of Record Statistics | ||||||||||||||||||||||||||
| MEAN | 0.65 | 0.60 | 0.80 | 0.81 | 0.72 | 0.42 | 0.79 | 0.85 | 0.85 | 1.03 | 0.69 | 0.77 | 9.01 | |||||||||||||
| S.D. | 0.58 | 0.49 | 0.61 | 0.61 | 0.63 | 0.50 | 0.92 | 0.60 | 0.86 | 1.03 | 0.53 | 0.76 | 2.65 | |||||||||||||
| SKEW | 1.96 | 1.01 | 1.26 | 0.90 | 0.90 | 1.51 | 3.31 | 0.84 | 2.55 | 1.45 | 0.93 | 2.96 | 0.60 | |||||||||||||
| MAX | 3.52 | 2.50 | 3.19 | 2.78 | 2.62 | 2.35 | 6.63 | 2.62 | 5.97 | 4.66 | 2.40 | 5.75 | 16.42 | |||||||||||||
| MIN | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.32 | |||||||||||||
| NO YRS | 120 | 119 | 119 | 119 | 119 | 119 | 119 | 119 | 118 | 119 | 116 | 119 | 100 | |||||||||||||