Year,Value,China (Country),Temp,Jun-Aug,(°C)
1940,18.252
1941,18.411
1942,18.903
1943,18.524
1944,19.389
1945,18.998
1946,19.205
1947,18.573
1948,18.889
1949,18.626
1950,18.284
1951,18.452
1952,18.491
1953,19.314
1954,18.171
1955,18.333
1956,18.223
1957,17.859
1958,18.156
1959,18.295
1960,18.418
1961,18.82
1962,18.333
1963,18.412
1964,18.14
1965,17.947
1966,18.389
1967,18.44
1968,18.024
1969,17.899
1970,18.147
1971,18.293
1972,18.36
1973,18.234
1974,18.017
1975,18.483
1976,17.399
1977,18.212
1978,18.71
1979,18.096
1980,18.274
1981,18.712
1982,18.234
1983,17.939
1984,18.239
1985,18.353
1986,18.33
1987,18.222
1988,18.774
1989,18.099
1990,18.629
1991,18.696
1992,17.906
1993,17.955
1994,19.154
1995,18.715
1996,18.404
1997,18.863
1998,19.025
1999,18.908
2000,19.205
2001,19.152
2002,19.064
2003,18.579
2004,18.527
2005,19.057
2006,19.33
2007,19.212
2008,18.851
2009,18.893
2010,19.499
2011,19.194
2012,19.077
2013,19.457
2014,18.811
2015,18.777
2016,19.589
2017,19.28
2018,19.708
2019,19.128
2020,19.168
2021,19.36
2022,19.997
2023,19.716
2024,20.152
2025,20.03