Every 1 to 9 October in Stillwater, OK from 1893 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.
| Year | Mean, °F | Rank | High, °F | Rank | Low, °F | Rank | Precipitation, in | Rank | Days missing |
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| 2026 | 70.1 | 24 | 83.2 | 29 | 56.9 | 35 | 0.42 | 53 | 0 |
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| 2025 | 73.4 | 9 | 86.9 | 12 | 60 | 14 | | | 0 |
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| 2024 | 74.1 | 6 | 91.1 | 3 | 57.1 | 33 | 0.00 | 104 | 0 |
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| 2023 | 69.4 | 28 | 83.9 | 23 | 55 | 45 | 0.36 | 60 | 0 |
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| 2022 | 66.6 | 54 | 84.9 | 22 | 48.3 | 91 | trace | 95 | 0 |
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| 2021 | 72.9 | 12 | 87.8 | 10 | 58 | 26 | 0.29 | 63 | 0 |
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| 2020 | 65.5 | 68 | 81.4 | 42 | 49.6 | 86 | 0.00 | 104 | 0 |
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| 2019 | 68.8 | 35 | 80.4 | 55 | 57.2 | 31 | 0.25 | 65 | 0 |
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| 2018 | 73.3 | 10 | 82.8 | 31 | 63.9 | 1 | 4.77 | 3 | 0 |
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| 2017 | 72.9 | 12 | 83.3 | 26 | 62.6 | 3 | 3.39 | 6 | 0 |
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| 2016 | 67.7 | 41 | 82.4 | 35 | 52.9 | 60 | 2.21 | 14 | 0 |
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| 2015 | 62.7 | 87 | 74.6 | 104 | 50.9 | 79 | 2.21 | 14 | 0 |
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| 2014 | 70.3 | 22 | 86.3 | 15 | 54.3 | 53 | 0.34 | 62 | 0 |
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| 2013 | 67.4 | 45 | 82.2 | 37 | 52.7 | 63 | 1.09 | 34 | 0 |
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| 2012 | 56.1 | 104 | 69.7 | 116 | 42.6 | 113 | trace | 95 | 0 |
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| 2011 | 69.4 | 28 | 83 | 30 | 55.8 | 39 | 1.52 | 24 | 0 |
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| 2010 | 62.6 | 88 | 82 | 38 | 43.2 | 111 | trace | 95 | 0 |
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| 2009 | 56.9 | 103 | 68.2 | 118 | 45.6 | 104 | 2.27 | 13 | 0 |
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| 2008 | 67.2 | 49 | 82.3 | 36 | 52 | 72 | 0.07 | 83 | 0 |
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| 2007 | 73.6 | 8 | 85.9 | 18 | 61.2 | 8 | 0.17 | 72 | 0 |
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| 2006 | 73 | 11 | 86.6 | 14 | 59.4 | 15 | 0.07 | 83 | 0 |
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| 2005 | 67.3 | 47 | 78.1 | 74 | 56.4 | 37 | 1.29 | 27 | 0 |
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| 2004 | 65.2 | 70 | 78.6 | 71 | 51.8 | 73 | 1.05 | 35 | 0 |
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| 2003 | 62.6 | 88 | 72.9 | 109 | 52.2 | 68 | 2.47 | 10 | 0 |
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| 2002 | 65.6 | 65 | 75.9 | 92 | 55.3 | 44 | 0.82 | 40 | 0 |
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| 2001 | 62.9 | 84 | 77.4 | 81 | 48.3 | 91 | 0.07 | 83 | 0 |
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| 2000 | 61.7 | 91 | 75 | 99 | 48.3 | 91 | 0.02 | 93 | 0 |
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| 1999 | 61.2 | 95 | 73.8 | 106 | 48.6 | 89 | trace | 95 | 0 |
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| 1998 | 62.8 | 85 | 73 | 108 | 52.6 | 65 | 3.61 | 5 | 0 |
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| 1997 | 74.2 | 5 | 86.3 | 15 | 62 | 5 | 0.47 | 48 | 0 |
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| 1996 | 63.4 | 83 | 76.2 | 90 | 50.7 | 81 | 0.42 | 53 | 0 |
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| 1995 | | | 75.7 | 94 | | | 0.78 | 42 | 2 |
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| 1994 | | | | | 57.9 | 27 | 0.96 | 37 | 1 |
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| 1993 | 67.4 | 45 | 81.2 | 45 | 53.6 | 57 | 0.40 | 57 | 0 |
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| 1991 | 64.8 | 72 | 79.3 | 65 | 50.2 | 83 | 0.00 | 104 | 0 |
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| 1990 | 66.3 | 56 | 78.3 | 72 | 54.2 | 54 | 1.24 | 30 | 0 |
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| 1989 | | | 79.6 | 62 | | | 0.93 | 38 | 1 |
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| 1988 | 54.7 | 105 | 63.2 | 120 | 46.2 | 103 | 1.23 | 31 | 0 |
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| 1987 | 58.8 | 101 | 74.9 | 101 | 42.7 | 112 | 0.00 | 104 | 0 |
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| 1986 | | | 73.9 | 105 | | | 4.05 | 4 | 1 |
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| 1985 | | | 70.3 | 113 | | | 0.03 | 92 | 3 |
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| 1984 | 65.6 | 65 | 78.7 | 70 | 52.6 | 65 | trace | 95 | 0 |
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| 1983 | 67.7 | 41 | 78 | 76 | 57.3 | 30 | 0.62 | 45 | 0 |
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| 1982 | 72.1 | 15 | 85.6 | 19 | 58.7 | 21 | 0.13 | 79 | 0 |
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| 1981 | 66.1 | 58 | 77.6 | 80 | 54.6 | 50 | 0.24 | 66 | 0 |
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| 1980 | 66.2 | 57 | 81.7 | 41 | 50.8 | 80 | 0.00 | 104 | 0 |
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| 1979 | 67.2 | 49 | 87 | 11 | 47.3 | 97 | 0.00 | 104 | 0 |
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| 1978 | 62.8 | 85 | 79 | 68 | 46.7 | 101 | 1.25 | 28 | 0 |
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| 1977 | | | 75.8 | 93 | | | 0.15 | 75 | 2 |
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| 1976 | 61 | 96 | 75 | 99 | 47 | 98 | 0.56 | 47 | 0 |
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| 1975 | 61.4 | 93 | 78.2 | 73 | 44.7 | 106 | 0.00 | 104 | 0 |
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| 1974 | 63.7 | 79 | 74.7 | 103 | 52.7 | 63 | 0.12 | 80 | 0 |
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| 1973 | 67.7 | 41 | 77.8 | 78 | 57.6 | 29 | 0.44 | 50 | 0 |
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| 1972 | 65.6 | 65 | 79.9 | 59 | 51.3 | 77 | trace | 95 | 0 |
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| 1971 | 65.7 | 63 | 80 | 57 | 51.4 | 75 | 0.19 | 70 | 0 |
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| 1970 | 64.9 | 71 | 76.7 | 85 | 53.1 | 59 | 2.78 | 9 | 0 |
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| 1969 | 68.1 | 39 | 82 | 38 | 54.1 | 55 | 0.45 | 49 | 0 |
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| 1968 | 64.8 | 72 | 77 | 83 | 52.6 | 65 | 1.93 | 17 | 0 |
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| 1967 | 70.9 | 17 | 83.3 | 26 | 58.6 | 22 | 1.40 | 26 | 0 |
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| 1966 | 66.7 | 53 | 81.2 | 45 | 52.2 | 68 | 0.00 | 104 | 0 |
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| 1965 | 61.7 | 91 | 76.4 | 87 | 46.9 | 100 | 0.00 | 104 | 0 |
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| 1964 | | | | | 43.6 | 109 | 0.00 | 104 | 1 |
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| 1963 | 70.3 | 22 | 92.9 | 1 | 47.7 | 95 | 0.00 | 104 | 0 |
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| 1962 | 67.1 | 52 | 79.3 | 65 | 54.9 | 47 | 1.19 | 32 | 0 |
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| 1961 | 63.9 | 78 | 76 | 91 | 51.8 | 73 | 0.05 | 89 | 0 |
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| 1960 | 70.4 | 21 | 86.3 | 15 | 54.6 | 50 | 0.00 | 104 | 0 |
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| 1959 | 60.1 | 98 | 70.3 | 113 | 49.9 | 84 | 11.11 | 1 | 0 |
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| 1958 | 66.4 | 55 | 80 | 57 | 52.9 | 60 | 0.00 | 104 | 0 |
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| 1957 | 67.3 | 47 | 79.6 | 62 | 55 | 45 | 0.28 | 64 | 0 |
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| 1956 | 74.3 | 4 | 90.3 | 5 | 58.2 | 24 | 0.00 | 104 | 0 |
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| 1955 | 67.6 | 44 | 76.7 | 85 | 58.4 | 23 | 5.03 | 2 | 0 |
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| 1954 | 72.9 | 12 | 82.8 | 31 | 63 | 2 | 0.43 | 52 | 0 |
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| 1953 | 65.9 | 61 | 79.7 | 60 | 52.1 | 70 | 0.39 | 58 | 0 |
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| 1952 | 59.2 | 100 | 74.8 | 102 | 43.6 | 109 | 0.00 | 104 | 0 |
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| 1951 | 68.4 | 37 | 81.4 | 42 | 55.4 | 43 | 1.66 | 22 | 0 |
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| 1950 | | | | | 53.8 | 56 | 0.24 | 66 | 1 |
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| 1949 | 70.9 | 17 | 81.1 | 47 | 60.8 | 10 | 0.38 | 59 | 0 |
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| 1948 | 66 | 60 | 80.6 | 54 | 51.4 | 75 | 0.02 | 93 | 0 |
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| 1945 | 62.3 | 90 | 70.1 | 115 | 54.6 | 50 | 0.17 | 72 | 0 |
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| 1944 | 68.4 | 37 | 79.6 | 62 | 57.2 | 31 | 1.95 | 16 | 0 |
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| 1943 | | | 75.4 | 95 | | | 0.18 | 71 | 1 |
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| 1942 | 65.9 | 61 | 80.9 | 49 | 51 | 78 | 0.36 | 60 | 0 |
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| 1941 | | | 80.3 | 56 | | | 1.72 | 20 | 1 |
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| 1940 | | | 83.9 | 23 | | | 0.08 | 81 | 1 |
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| 1939 | 74.4 | 3 | 88.4 | 9 | 60.4 | 11 | 0.74 | 43 | 0 |
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| 1938 | 75.2 | 1 | 91.3 | 2 | 59 | 20 | 0.00 | 104 | 0 |
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| 1937 | 69.4 | 28 | 81.9 | 40 | 56.9 | 35 | 1.89 | 19 | 0 |
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| 1936 | 63.5 | 82 | 72.3 | 110 | 54.7 | 48 | 1.62 | 23 | 0 |
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| 1935 | | | 75.4 | 95 | | | 0.06 | 87 | 1 |
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| 1934 | 64.3 | 77 | 78.1 | 74 | 50.6 | 82 | | | 0 |
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| 1933 | 60.9 | 97 | 77.3 | 82 | 44.4 | 107 | | | 0 |
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| 1932 | 63.7 | 79 | 75.2 | 97 | 52.1 | 70 | 0.23 | 68 | 0 |
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| 1931 | | | 90.2 | 6 | | | 0.14 | 77 | 1 |
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| 1930 | 67.8 | 40 | 76.3 | 88 | 59.3 | 17 | 1.49 | 25 | 0 |
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| 1929 | | | | | 57 | 34 | 0.07 | 83 | 1 |
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| 1928 | | | 91 | 4 | | | 0.06 | 87 | 2 |
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| 1927 | 64.6 | 74 | 76.3 | 88 | 52.8 | 62 | 2.47 | 10 | 0 |
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| 1926 | 69.4 | 28 | 78.8 | 69 | 60.1 | 13 | 3.07 | 8 | 0 |
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| 1925 | 70 | 25 | 77.7 | 79 | 62.3 | 4 | 1.91 | 18 | 0 |
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| 1924 | 69.2 | 32 | 82.7 | 33 | 55.7 | 40 | 0.41 | 56 | 0 |
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| 1923 | | | | | 57.9 | 27 | 1.14 | 33 | 1 |
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| 1922 | 67.2 | 49 | 80.9 | 49 | 53.4 | 58 | 0.20 | 69 | 0 |
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| 1921 | 64.6 | 74 | 81 | 48 | 48.1 | 94 | 0.15 | 75 | 0 |
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| 1920 | 66.1 | 58 | 82.7 | 33 | 49.6 | 86 | trace | 95 | 0 |
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| 1919 | 69.2 | 32 | 77.9 | 77 | 60.4 | 11 | 1.72 | 20 | 0 |
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| 1918 | 74.1 | 6 | 86.8 | 13 | 61.3 | 7 | 1.25 | 28 | 0 |
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| 1917 | 61.3 | 94 | 75.2 | 97 | 47.4 | 96 | 0.00 | 104 | 0 |
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| 1916 | 70.5 | 20 | 85.4 | 20 | 55.6 | 42 | 0.00 | 104 | 0 |
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| 1915 | 57.4 | 102 | 70.7 | 112 | 44.2 | 108 | 0.00 | 104 | 0 |
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| 1914 | | | | | 58.1 | 25 | 0.44 | 50 | 5 |
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| 1913 | 71.1 | 16 | 80.7 | 52 | 61.4 | 6 | 2.33 | 12 | 0 |
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| 1912 | 70.8 | 19 | 85.2 | 21 | 56.3 | 38 | trace | 95 | 0 |
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| 1911 | | | | | | | 0.14 | 77 | 2 |
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| 1910 | 65.5 | 68 | 81.3 | 44 | 49.7 | 85 | 0.69 | 44 | 0 |
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| 1909 | | | | | | | 0.16 | 74 | 2 |
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| 1908 | | | 73.4 | 107 | | | 0.60 | 46 | 1 |
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| 1907 | 65.7 | 63 | 76.8 | 84 | 54.7 | 48 | 3.25 | 7 | 0 |
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| 1906 | | | | | 45.6 | 104 | 0.08 | 81 | 1 |
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| 1905 | 69.5 | 27 | 83.3 | 26 | 55.7 | 40 | trace | 95 | 0 |
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| 1904 | | | | | 59.4 | 15 | 0.04 | 91 | 1 |
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| 1903 | 69.2 | 32 | 79.1 | 67 | 59.2 | 18 | 0.42 | 53 | 0 |
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| 1902 | | | 67.4 | 119 | | | 0.80 | 41 | 1 |
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| 1901 | | | 83.4 | 25 | | | 0.85 | 39 | 1 |
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| 1900 | 70 | 25 | 80.9 | 49 | 59.1 | 19 | 0.00 | 104 | 0 |
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| 1899 | 63.7 | 79 | 80.7 | 52 | 46.7 | 101 | 0.05 | 89 | 0 |
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| 1898 | 74.8 | 2 | 88.8 | 8 | 60.9 | 9 | 0.00 | 104 | 0 |
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| 1897 | 68.8 | 35 | 89.2 | 7 | 48.4 | 90 | 0.00 | 104 | 0 |
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| 1896 | 64.6 | 74 | 79.7 | 60 | 49.6 | 86 | 0.00 | 104 | 0 |
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| 1895 | | | 69.4 | 117 | | | 0.98 | 36 | 1 |
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| 1894 | 59.6 | 99 | 72.2 | 111 | 47 | 98 | 0.00 | 104 | 0 |
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| 1893 | | | | | | | 0.00 | 104 | 9 |
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