Year,Value,United Kingdom (Country),Temp,Mar-May,(°C)
1940,8.03
1941,5.91
1942,6.683
1943,8.263
1944,7.79
1945,8.856
1946,7.704
1947,7.123
1948,8.41
1949,7.536
1950,7.646
1951,5.855
1952,8.497
1953,7.438
1954,7.151
1955,6.316
1956,7.214
1957,8.427
1958,6.166
1959,8.502
1960,8.261
1961,8.594
1962,5.531
1963,6.729
1964,7.446
1965,6.928
1966,6.905
1967,7.31
1968,7.158
1969,6.394
1970,6.776
1971,7.403
1972,7.55
1973,7.219
1974,7.415
1975,6.667
1976,7.308
1977,7.292
1978,7.278
1979,6.046
1980,7.285
1981,7.949
1982,7.887
1983,6.838
1984,6.952
1985,7.104
1986,6.479
1987,7.234
1988,7.804
1989,7.917
1990,8.764
1991,7.92
1992,8.657
1993,8.092
1994,7.636
1995,7.547
1996,6.637
1997,8.721
1998,8.486
1999,8.795
2000,8.158
2001,7.549
2002,8.608
2003,8.888
2004,8.517
2005,8.191
2006,7.44
2007,9.138
2008,8.194
2009,8.725
2010,7.767
2011,9.246
2012,8.232
2013,6.155
2014,9.101
2015,7.797
2016,7.828
2017,9.272
2018,8.227
2019,8.568
2020,8.852
2021,7.265
2022,9.007
2023,8.562
2024,9.472
2025,9.691