Year,Value,United Kingdom (Country),Solar,Mar-May,(MJ)
1940,39.602
1941,38.005
1942,41.368
1943,41.242
1944,42.788
1945,42.282
1946,42.74
1947,39.371
1948,44.468
1949,41.571
1950,40.521
1951,41.619
1952,40.533
1953,43.266
1954,39.97
1955,43.088
1956,43.596
1957,41.765
1958,40.532
1959,42.509
1960,40.601
1961,39.465
1962,41.392
1963,40.058
1964,38.208
1965,41.101
1966,38.341
1967,39.825
1968,40.688
1969,38.069
1970,40.739
1971,38.277
1972,38.2
1973,40.536
1974,41.492
1975,39.681
1976,38.6
1977,41.76
1978,40.61
1979,39.678
1980,42.405
1981,38.187
1982,43.118
1983,37.081
1984,42.304
1985,38.038
1986,39.557
1987,39.898
1988,39.518
1989,41.569
1990,44.17
1991,38.106
1992,40.995
1993,39.048
1994,40.079
1995,42.703
1996,37.68
1997,40.209
1998,39.254
1999,38.873
2000,40.801
2001,41.024
2002,41.002
2003,42.797
2004,40.005
2005,40.398
2006,39.424
2007,42.028
2008,42.528
2009,41.671
2010,42.08
2011,42.087
2012,41.729
2013,40.256
2014,38.606
2015,41.625
2016,41.709
2017,40.444
2018,40.245
2019,41.498
2020,46.991
2021,43.415
2022,41.345
2023,39.97
2024,37.133
2025,46.917