Every July in Rockford, IL 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 | 74.9 | 45 | 85.4 | 56 | 64.4 | 28 | 3.01 | 76 | 0 |
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| 2025 | 76.2 | 20 | 85.8 | 52 | 66.6 | 8 | 6.49 | 16 | 0 |
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| 2024 | 73 | 76 | 83 | 92 | 63 | 52 | 7.79 | 8 | 0 |
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| 2023 | 72.7 | 82 | 83.9 | 78 | 61.5 | 89 | 4.32 | 47 | 0 |
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| 2022 | 74 | 62 | 84.2 | 74 | 63.8 | 36 | 5.43 | 26 | 0 |
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| 2021 | 74.8 | 49 | 84.4 | 71 | 65.2 | 19 | 2.27 | 100 | 0 |
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| 2020 | 76.9 | 12 | 87.4 | 29 | 66.5 | 9 | 3.06 | 75 | 0 |
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| 2019 | 77.5 | 10 | 87.9 | 24 | 67.1 | 6 | 2.80 | 81 | 0 |
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| 2018 | 72.8 | 80 | 83.5 | 83 | 62.1 | 76 | 2.38 | 95 | 0 |
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| 2017 | 74 | 62 | 84.1 | 76 | 64 | 32 | 7.43 | 11 | 0 |
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| 2016 | 74.9 | 45 | 84.5 | 69 | 65.3 | 17 | 7.87 | 7 | 0 |
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| 2015 | 72.4 | 91 | 82.5 | 100 | 62.2 | 75 | 3.50 | 68 | 0 |
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| 2014 | 69.1 | 124 | 79.2 | 124 | 59.1 | 118 | 2.46 | 92 | 0 |
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| 2013 | 72.6 | 86 | 82.7 | 96 | 62.5 | 65 | 1.92 | 104 | 0 |
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| 2012 | 80.8 | 1 | 92.8 | 4 | 68.8 | 1 | 2.68 | 86 | 0 |
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| 2011 | 78.9 | 6 | 89.6 | 12 | 68.3 | 2 | 4.60 | 41 | 0 |
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| 2010 | 75.4 | 29 | 85.4 | 56 | 65.4 | 16 | 9.40 | 3 | 0 |
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| 2009 | 67 | 128 | 77 | 128 | 57 | 127 | 2.60 | 89 | 0 |
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| 2008 | 73.2 | 70 | 83.5 | 83 | 62.9 | 56 | 7.35 | 14 | 0 |
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| 2007 | 73.2 | 70 | 84.6 | 67 | 61.8 | 82 | 2.43 | 93 | 0 |
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| 2006 | 75.1 | 43 | 85.4 | 56 | 64.9 | 22 | 3.64 | 65 | 0 |
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| 2005 | 74.2 | 60 | 85.7 | 53 | 62.7 | 59 | 1.45 | 113 | 0 |
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| 2004 | 70.3 | 120 | 80.1 | 121 | 60.5 | 106 | 3.65 | 64 | 0 |
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| 2003 | 71.9 | 100 | 82.8 | 95 | 61 | 97 | 4.30 | 48 | 0 |
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| 2002 | 76.8 | 14 | 88.3 | 18 | 65.3 | 17 | 1.75 | 106 | 0 |
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| 2001 | 75.2 | 40 | 86.9 | 37 | 63.5 | 42 | 0.75 | 122 | 0 |
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| 2000 | 71 | 112 | 80.9 | 118 | 61.2 | 94 | 4.54 | 43 | 0 |
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| 1999 | 76.8 | 14 | 87 | 34 | 66.5 | 9 | 3.41 | 70 | 0 |
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| 1998 | 71.8 | 103 | 81.8 | 107 | 61.7 | 84 | 3.68 | 61 | 0 |
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| 1997 | 72.2 | 95 | 82.9 | 94 | 61.5 | 89 | 1.69 | 107 | 0 |
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| 1996 | 69.1 | 124 | 79.6 | 123 | 58.5 | 122 | 9.72 | 2 | 0 |
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| 1995 | 74.7 | 50 | 85.4 | 56 | 64 | 32 | 2.61 | 88 | 0 |
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| 1994 | 71 | 112 | 81.1 | 116 | 61 | 97 | 2.84 | 79 | 0 |
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| 1993 | 73.7 | 65 | 82.6 | 97 | 64.8 | 23 | 3.72 | 60 | 0 |
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| 1992 | 69.1 | 124 | 78 | 127 | 60.2 | 112 | 5.12 | 33 | 0 |
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| 1991 | 74.2 | 60 | 86.4 | 42 | 62 | 80 | 0.79 | 121 | 0 |
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| 1990 | 71.9 | 100 | 81.6 | 112 | 62.3 | 73 | 4.93 | 38 | 0 |
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| 1989 | 74.7 | 50 | 85.4 | 56 | 63.9 | 34 | 7.61 | 9 | 0 |
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| 1988 | 76.5 | 18 | 90.1 | 8 | 63 | 52 | 2.39 | 94 | 0 |
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| 1987 | 76.3 | 19 | 86.8 | 38 | 65.8 | 13 | 5.02 | 34 | 0 |
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| 1986 | 75.3 | 36 | 84.9 | 64 | 65.6 | 15 | 3.14 | 74 | 0 |
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| 1985 | 71.9 | 100 | 83.3 | 88 | 60.5 | 106 | 2.98 | 77 | 0 |
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| 1984 | 70.7 | 118 | 82.6 | 97 | 58.9 | 119 | 2.92 | 78 | 0 |
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| 1983 | 78 | 9 | 88.7 | 16 | 67.3 | 5 | 3.85 | 56 | 0 |
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| 1982 | 74.6 | 53 | 84.2 | 74 | 65 | 21 | 8.89 | 4 | 0 |
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| 1981 | 72.5 | 88 | 82.2 | 104 | 62.8 | 57 | 1.14 | 117 | 0 |
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| 1980 | 75.4 | 29 | 86.4 | 42 | 64.3 | 29 | 3.58 | 67 | 0 |
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| 1979 | 71.5 | 107 | 82.4 | 102 | 60.5 | 106 | 4.34 | 46 | 0 |
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| 1978 | 72.3 | 93 | 81.3 | 114 | 63.3 | 47 | 7.41 | 12 | 0 |
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| 1977 | 75.4 | 29 | 86.1 | 48 | 64.7 | 24 | 4.73 | 39 | 0 |
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| 1976 | 73.4 | 69 | 86 | 49 | 60.7 | 102 | 2.05 | 103 | 0 |
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| 1975 | 73.1 | 72 | 84.6 | 67 | 61.6 | 87 | 1.30 | 115 | 0 |
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| 1974 | 75.3 | 36 | 87 | 34 | 63.6 | 39 | 1.48 | 112 | 0 |
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| 1973 | 73.5 | 67 | 83.5 | 83 | 63.4 | 44 | 5.81 | 22 | 0 |
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| 1972 | 71.1 | 111 | 80 | 122 | 62.1 | 76 | 8.39 | 5 | 0 |
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| 1971 | 70.7 | 118 | 81.7 | 109 | 59.6 | 116 | 2.81 | 80 | 0 |
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| 1970 | 73.5 | 67 | 84.4 | 71 | 62.7 | 59 | 4.29 | 49 | 0 |
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| 1969 | 72.5 | 88 | 81.2 | 115 | 63.9 | 34 | 5.72 | 23 | 0 |
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| 1968 | 70.9 | 116 | 81.1 | 116 | 60.6 | 104 | 2.62 | 87 | 0 |
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| 1967 | 69.5 | 122 | 80.4 | 120 | 58.7 | 121 | 1.32 | 114 | 0 |
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| 1966 | 75.4 | 29 | 87 | 34 | 63.8 | 36 | 1.59 | 110 | 0 |
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| 1965 | 72.9 | 78 | 84.9 | 64 | 60.9 | 101 | 3.81 | 57 | 0 |
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| 1964 | 72.7 | 82 | 83 | 92 | 62.5 | 65 | 5.20 | 30 | 0 |
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| 1963 | 73.8 | 64 | 84.5 | 69 | 63 | 52 | 5.16 | 31 | 0 |
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| 1962 | 69.5 | 122 | 78.4 | 126 | 60.6 | 104 | 5.56 | 24 | 0 |
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| 1961 | 72.3 | 93 | 82 | 106 | 62.5 | 65 | 3.92 | 54 | 0 |
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| 1960 | 71.4 | 109 | 82.5 | 100 | 60.2 | 112 | 3.79 | 58 | 0 |
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| 1959 | 72.1 | 96 | 83.2 | 89 | 61.1 | 95 | 7.56 | 10 | 0 |
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| 1958 | 70.8 | 117 | 80.6 | 119 | 61.1 | 95 | 5.31 | 28 | 0 |
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| 1957 | 75.4 | 29 | 86.5 | 39 | 64.2 | 31 | 4.39 | 44 | 0 |
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| 1956 | 71.8 | 103 | 82.6 | 97 | 61 | 97 | 4.95 | 37 | 0 |
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| 1955 | 79.4 | 4 | 91.3 | 5 | 67.6 | 4 | 2.71 | 83 | 0 |
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| 1954 | 73.6 | 66 | 85.2 | 61 | 62.1 | 76 | 3.61 | 66 | 0 |
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| 1953 | 74.6 | 53 | 85.7 | 53 | 63.6 | 39 | 2.37 | 96 | 0 |
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| 1952 | 75.2 | 40 | 86 | 49 | 64.3 | 29 | 11.81 | 1 | 0 |
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| 1951 | 71.5 | 107 | 82.1 | 105 | 61 | 97 | 7.41 | 12 | 0 |
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| 1950 | 71 | 112 | 83.7 | 81 | 58.4 | 124 | 6.19 | 19 | 0 |
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| 1949 | 76.9 | 12 | 87.9 | 24 | 65.8 | 13 | 3.93 | 53 | 0 |
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| 1948 | 75.7 | 25 | 88 | 22 | 63.4 | 44 | 2.58 | 90 | 0 |
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| 1947 | 71.6 | 106 | 84.1 | 76 | 59.2 | 117 | 3.68 | 61 | 0 |
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| 1945 | 71.8 | 103 | 83.5 | 83 | 60.1 | 114 | 2.16 | 101 | 0 |
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| 1944 | 73 | 76 | 85.6 | 55 | 60.4 | 109 | 3.79 | 58 | 0 |
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| 1943 | 75.3 | 36 | 87.1 | 31 | 63.3 | 47 | 5.00 | 35 | 1 |
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| 1942 | 74.5 | 55 | 86.4 | 42 | 62.5 | 65 | 4.00 | 52 | 0 |
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| 1941 | 74.9 | 45 | 88.1 | 21 | 61.8 | 82 | 3.23 | 72 | 0 |
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| 1940 | 75.5 | 26 | 88.4 | 17 | 62.6 | 63 | 4.56 | 42 | 0 |
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| 1939 | 75.4 | 29 | 88.2 | 20 | 62.6 | 63 | 2.29 | 99 | 0 |
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| 1938 | 74.4 | 57 | 86.2 | 46 | 62.7 | 59 | 5.15 | 32 | 0 |
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| 1937 | 75.9 | 22 | 89.7 | 11 | 62.1 | 76 | 0.05 | 128 | 0 |
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| 1936 | 80 | 3 | 96.5 | 1 | 63.6 | 39 | 0.66 | 126 | 0 |
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| 1935 | 78.3 | 7 | 90.3 | 7 | 66.3 | 11 | 6.33 | 17 | 0 |
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| 1934 | 78.1 | 8 | 91.2 | 6 | 65.1 | 20 | 3.40 | 71 | 0 |
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| 1933 | 75.4 | 29 | 87.8 | 26 | 62.7 | 59 | 6.30 | 18 | 1 |
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| 1932 | 75.5 | 26 | 89.4 | 14 | 61.6 | 87 | 1.19 | 116 | 0 |
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| 1931 | 76.6 | 16 | 90 | 9 | 63.1 | 49 | 4.10 | 51 | 0 |
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| 1930 | 75.2 | 40 | 89.2 | 15 | 61.3 | 93 | 2.70 | 85 | 0 |
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| 1929 | 74.9 | 45 | 87.4 | 29 | 62.4 | 69 | 2.77 | 82 | 0 |
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| 1928 | 74.7 | 50 | 86.3 | 45 | 63.1 | 49 | 2.35 | 97 | 0 |
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| 1927 | 72.6 | 86 | 87.1 | 31 | 58.2 | 125 | 0.74 | 123 | 0 |
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| 1926 | 72.4 | 91 | 84.3 | 73 | 60.4 | 109 | 6.90 | 15 | 0 |
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| 1925 | 72.9 | 78 | 85.9 | 51 | 59.8 | 115 | 3.23 | 72 | 0 |
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| 1924 | 69.8 | 121 | 83.2 | 89 | 56.5 | 128 | 2.08 | 102 | 0 |
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| 1923 | 75.3 | 36 | 89.5 | 13 | 61.4 | 92 | 1.67 | 108 | 1 |
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| 1922 | 72.7 | 82 | 85 | 63 | 60.4 | 109 | 5.28 | 29 | 0 |
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| 1921 | 80.3 | 2 | 94.6 | 2 | 65.9 | 12 | 0.72 | 124 | 0 |
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| 1920 | 71.4 | 109 | 85.2 | 61 | 57.6 | 126 | 0.94 | 118 | 0 |
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| 1919 | 76.6 | 16 | 89.8 | 10 | 63.5 | 42 | 5.40 | 27 | 0 |
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| 1918 | 71 | 112 | 83.4 | 87 | 58.5 | 122 | 1.53 | 111 | 1 |
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| 1917 | 72.7 | 82 | 84.7 | 66 | 60.7 | 102 | 1.61 | 109 | 0 |
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| 1916 | 79 | 5 | 93.4 | 3 | 64.5 | 27 | 0.48 | 127 | 0 |
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| 1915 | 69 | 127 | 79.1 | 125 | 58.8 | 120 | 5.85 | 20 | 0 |
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| 1914 | 75.1 | 43 | 87.8 | 26 | 62.4 | 69 | 0.84 | 119 | 0 |
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| 1913 | 74.4 | 57 | 87.1 | 31 | 61.7 | 84 | 5.85 | 20 | 0 |
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| 1912 | 72 | 97 | 82.4 | 102 | 61.5 | 89 | 8.21 | 6 | 0 |
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| 1911 | 74.5 | 55 | 86.2 | 46 | 62.8 | 57 | 0.81 | 120 | 0 |
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| 1910 | 75.9 | 22 | 88.3 | 18 | 63.4 | 44 | 1.91 | 105 | 0 |
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| 1909 | 72 | 97 | 81.5 | 113 | 62.4 | 69 | 0.68 | 125 | 0 |
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| 1908 | 72 | 97 | 81.7 | 109 | 62.3 | 73 | 3.67 | 63 | 0 |
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| 1907 | 72.5 | 88 | 81.8 | 107 | 63.1 | 49 | 4.63 | 40 | 0 |
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| 1906 | 72.8 | 80 | 83.9 | 78 | 61.7 | 84 | 3.91 | 55 | 0 |
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| 1905 | 73.1 | 72 | 81.7 | 109 | 63.7 | 38 | 4.24 | 50 | 3 |
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| 1904 | 73.1 | 72 | 83.1 | 91 | 63 | 52 | 4.99 | 36 | 0 |
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| 1903 | 73.1 | 72 | 83.8 | 80 | 62.4 | 69 | 5.49 | 25 | 0 |
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| 1898 | 74.3 | 59 | 86.5 | 39 | 62 | 80 | 2.32 | 98 | 0 |
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| 1897 | 77.5 | 10 | 88 | 22 | 66.9 | 7 | 2.71 | 83 | 0 |
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| 1896 | 75.5 | 26 | 86.5 | 39 | 64.6 | 25 | 4.36 | 45 | 0 |
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| 1895 | 76.1 | 21 | 87.6 | 28 | 64.6 | 25 | 2.53 | 91 | 0 |
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| 1893 | 75.8 | 24 | 83.7 | 81 | 67.9 | 3 | 3.49 | 69 | 0 |
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