Year,Value,Wisconsin (State),Wind,Apr,(mph)
1940,7.921
1941,8.147
1942,8.694
1943,9.42
1944,8.278
1945,10.226
1946,8.887
1947,8.713
1948,9.581
1949,8.01
1950,9.825
1951,8.415
1952,8.513
1953,9.655
1954,9.249
1955,9.045
1956,8.999
1957,8.556
1958,9.313
1959,8.352
1960,9.674
1961,8.364
1962,8.953
1963,8.723
1964,10.103
1965,8.15
1966,8.256
1967,8.931
1968,9.648
1969,8.262
1970,10.043
1971,8.544
1972,7.548
1973,9.695
1974,8.907
1975,7.987
1976,8.431
1977,8.212
1978,8.958
1979,8.068
1980,8.605
1981,8.9
1982,9.283
1983,8.218
1984,10.212
1985,8.855
1986,9.823
1987,8.144
1988,8.334
1989,8.122
1990,8.638
1991,8.818
1992,7.851
1993,8.754
1994,9.342
1995,8.503
1996,8.645
1997,7.987
1998,8.116
1999,8.181
2000,8.432
2001,9.479
2002,8.654
2003,9.003
2004,8.299
2005,8.119
2006,8.988
2007,8.895
2008,9.287
2009,8.781
2010,9.043
2011,8.817
2012,8.482
2013,9.151
2014,9.447
2015,8.846
2016,8.637
2017,8.427
2018,8.202
2019,8.482
2020,8.538
2021,7.762
2022,10.144
2023,9.631
2024,9.87