Category,Annual Mean,5-yr smooth
1901,422.49,447.15
1902,480.78,429.9
1903,366.68,414.01
1904,433.35,400.83
1905,390.11,391.69
1906,401.65,388.02
1907,362.01,390.81
1908,360.41,398.54
1909,466.51,408.53
1910,405.42,418.01
1911,446.25,424.29
1912,386.56,424.79
1913,426.22,419.83
1914,441.21,412.15
1915,352.74,404.56
1916,408.41,399.85
1917,483.84,400.82
1918,392.21,407.64
1919,288.56,416.71
1920,453.5,424.09
1921,538.86,425.87
1922,387.35,418.09
1923,384.57,399.11
1924,312.29,373.46
1925,429.69,346.62
1926,293.11,324.31
1927,268.09,312.03
1928,313.69,313.95
1929,380.01,327.17
1930,339.57,346.34
1931,400.8,366.19
1932,365.11,381.46
1933,340.3,387.4
1934,390.46,384.79
1935,388.79,377.83
1936,377.95,370.71
1937,372.23,367.64
1938,363.57,372.69
1939,379.33,385.58
1940,387.11,401.54
1941,469.05,415.6
1942,388.17,422.68
1943,435.65,417.86
1944,389.75,400.06
1945,387.91,375.49
1946,310.52,351.4
1947,327.1,334.81
1948,384.43,332.82
1949,328.16,349.75
1950,423.41,379.7
1951,371.34,414.68
1952,436.63,446.7
1953,455.23,467.78
1954,497.69,471.15
1955,451.09,459.54
1956,430.79,439.47
1957,488.48,417.43
1958,330.34,400.1
1959,451.82,393.51
1960,300,397.26
1961,428.57,406.11
1962,468.04,414.61
1963,421.69,417.37
1964,399.23,409.12
1965,367.85,389.26
1966,285.55,363.79
1967,427.96,338.92
1968,359.93,320.97
1969,280.63,316.22
1970,338.87,327.67
1971,381.15,350.35
1972,316.57,378.14
1973,335.83,404.97
1974,482.36,424.58
1975,391.36,432.38
1976,508.76,430.37
1977,547.97,422.41
1978,286.01,412.47
1979,325.64,404.42
1980,387.45,401.75
1981,530.18,404.12
1982,397.03,409.13
1983,378.63,414.38
1984,363.97,417.48
1985,514.05,416.12
1986,383.48,410.42
1987,372.15,402.74
1988,363.69,395.52
1989,460.01,391.22
1990,375.99,392.28
1991,388.14,399.28
1992,408.59,409.74
1993,447.64,420.9
1994,363.39,429.91
1995,468.85,434.03
1996,508.36,431.43
1997,358.95,423.21
1998,402.54,411.13
1999,377.27,396.86
2000,358.86,382.12
2001,431.34,368.47
2002,376.83,357.03
2003,303.47,348.61
2004,361.23,344.05
2005,305.8,344.19
2006,393.58,349.69
2007,401.02,358.98
2008,375.29,369
2009,293.18,376.69
2010,325.85,378.91
2011,383.89,372.7
2012,394.25,358.01
2013,370.18,338.26
2014,365.79,317.23
2015,307.54,298.53
2016,275.05,285.84
2017,241.78,281.24
2018,288.42,283.48
2019,224.27,290.82
2020,309.15,301.58
2021,357.66,314.08