Year,Value,North America,Temp,Sep,(°C)
1940,13.623
1941,11.173
1942,11.793
1943,12.2
1944,12.621
1945,11.912
1946,12.3
1947,12.132
1948,12.939
1949,12.496
1950,12.361
1951,12.411
1952,12.449
1953,12.683
1954,12.812
1955,12.241
1956,11.503
1957,12.731
1958,12.444
1959,12.139
1960,12.54
1961,11.538
1962,12.044
1963,12.429
1964,11.702
1965,10.765
1966,12.821
1967,12.536
1968,12.512
1969,12.166
1970,11.723
1971,12.256
1972,10.834
1973,12.489
1974,11.14
1975,11.782
1976,12.418
1977,12.711
1978,12.163
1979,12.719
1980,11.784
1981,12.493
1982,12.288
1983,12.536
1984,11.245
1985,11.776
1986,11.63
1987,13.072
1988,12.451
1989,12.526
1990,12.84
1991,12.277
1992,11.175
1993,11.551
1994,12.968
1995,12.797
1996,12.258
1997,13.307
1998,14.145
1999,12.813
2000,12.232
2001,13.389
2002,13.415
2003,12.95
2004,12.559
2005,13.536
2006,13.054
2007,12.842
2008,12.652
2009,13.93
2010,13.257
2011,13.872
2012,13.902
2013,13.463
2014,12.75
2015,13.832
2016,13.657
2017,13.706
2018,12.453
2019,14.109
2020,13.189
2021,13.963
2022,14.339
2023,14.794
2024,15.091