Year,Value,Europe,Wind,Jan-Apr,(kph)
1940,13.087
1941,12.939
1942,12.868
1943,14.049
1944,12.804
1945,12.836
1946,13.18
1947,12.925
1948,13.381
1949,13.732
1950,13.096
1951,13.216
1952,12.944
1953,13.379
1954,12.687
1955,12.838
1956,13.104
1957,12.885
1958,13.305
1959,13.127
1960,12.768
1961,12.849
1962,13.705
1963,12.61
1964,12.691
1965,13.102
1966,12.757
1967,13.604
1968,13.459
1969,13.323
1970,13.377
1971,13.268
1972,13.096
1973,13.053
1974,12.677
1975,13.023
1976,13.08
1977,12.763
1978,12.9
1979,13.323
1980,12.441
1981,13.244
1982,12.733
1983,13.305
1984,13.375
1985,12.681
1986,13.206
1987,12.93
1988,13.155
1989,13.576
1990,14.093
1991,12.583
1992,13.467
1993,13.671
1994,13.322
1995,14.35
1996,12.635
1997,13.799
1998,13.396
1999,13.092
2000,13.355
2001,12.806
2002,13.388
2003,13.008
2004,12.658
2005,13.244
2006,12.221
2007,13.065
2008,13.499
2009,12.205
2010,12.52
2011,12.761
2012,12.962
2013,12.502
2014,13.118
2015,13.725
2016,12.918
2017,13.368
2018,12.814
2019,13.193
2020,14.148
2021,12.754
2022,13.487
2023,13.331
2024,13.274
2025,12.445