Year,Value,Canadian Archipelago (NSIDC),SLP,Mar,(hPa) 1940,1026.096 1941,1023.431 1942,1020.175 1943,1018.261 1944,1016.952 1945,1013.722 1946,1016.07 1947,1025.453 1948,1013.324 1949,1017.736 1950,1019.831 1951,1030.856 1952,1026.094 1953,1020.823 1954,1020.086 1955,1023.067 1956,1014.69 1957,1024.911 1958,1028.891 1959,1016.488 1960,1022.568 1961,1024.402 1962,1029.454 1963,1015.224 1964,1014.984 1965,1023.956 1966,1024.734 1967,1013.169 1968,1019.207 1969,1022.721 1970,1025.934 1971,1022.887 1972,1015.919 1973,1017.135 1974,1017.3 1975,1024.034 1976,1009.061 1977,1019.253 1978,1017.108 1979,1016.985 1980,1017.595 1981,1022.498 1982,1013.42 1983,1018.082 1984,1024.44 1985,1016.25 1986,1008.904 1987,1024.029 1988,1022.621 1989,1015.705 1990,1012.986 1991,1014.003 1992,1017.33 1993,1016.663 1994,1015.206 1995,1019.926 1996,1019.512 1997,1015.689 1998,1020.606 1999,1020.813 2000,1018.274 2001,1023.807 2002,1020.863 2003,1017.693 2004,1016.211 2005,1021.983 2006,1027.833 2007,1016.917 2008,1018.995 2009,1022.199 2010,1015.887 2011,1016.96 2012,1016.142 2013,1028.86 2014,1016.528 2015,1013.939 2016,1015.924 2017,1016.459 2018,1026.195 2019,1015.484 2020,1015.374 2021,1016.456 2022,1013.942 2023,1026.366 2024,1021.409 2025,1014.599