Year,Value,Iran (Country),Temp,Jan-Dec,(°C) 1940,17.091 1941,18.109 1942,17.948 1943,16.839 1944,17.354 1945,16.665 1946,16.858 1947,17.289 1948,16.7 1949,15.922 1950,16.229 1951,16.951 1952,16.774 1953,16.63 1954,16.649 1955,17.312 1956,16.546 1957,15.493 1958,17.631 1959,16.673 1960,17.057 1961,16.64 1962,16.903 1963,17.438 1964,16.015 1965,17.051 1966,17.787 1967,16.537 1968,16.838 1969,16.906 1970,17.882 1971,17.35 1972,15.709 1973,17.285 1974,16.371 1975,16.756 1976,16.656 1977,17.688 1978,17.481 1979,17.247 1980,17.564 1981,17.16 1982,15.796 1983,16.558 1984,16.354 1985,16.986 1986,16.252 1987,17.369 1988,17.456 1989,16.983 1990,17.666 1991,17.344 1992,16.118 1993,17.105 1994,17.731 1995,17.762 1996,17.415 1997,17.536 1998,18.373 1999,18.411 2000,18.302 2001,18.958 2002,18.518 2003,18.256 2004,18.492 2005,18.202 2006,18.563 2007,18.062 2008,18.305 2009,18.426 2010,19.433 2011,18.318 2012,18.089 2013,18.646 2014,18.336 2015,19.003 2016,19.113 2017,18.957 2018,19.4 2019,18.68 2020,18.272 2021,19.679 2022,19.47 2023,19.643 2024,19.381