category,gp_annual_mean_mm,gp_5_yr_smooth_mm
1901,755.67,638.81
1902,625.83,651.86
1903,543.23,664.2
1904,675.19,675.09
1905,586.88,683.85
1906,656.97,689.69
1907,867.65,692.14
1908,563.13,692.3
1909,935.22,692.01
1910,711.36,693.14
1911,658.32,697.57
1912,578.02,706.99
1913,641.42,720.5
1914,774.98,734.82
1915,851.46,746.73
1916,605.17,752.95
1917,889.86,750.26
1918,833.74,738.35
1919,529.14,721.21
1920,706.24,703.19
1921,754.94,688.62
1922,690.23,681.92
1923,642.39,685.19
1924,744.1,694.59
1925,801.47,705.28
1926,563.56,712.32
1927,590.08,710.9
1928,736.72,697.43
1929,898.15,675.07
1930,594.02,649.35
1931,608.87,625.62
1932,533.61,609.29
1933,620.43,605.32
1934,717.29,613.83
1935,439.04,631.98
1936,781.96,656.93
1937,676.08,685.92
1938,656.52,715.95
1939,878.2,744.32
1940,701.21,768.37
1941,662.05,785.45
1942,917.21,792.78
1943,833.1,787.78
1944,790.19,770.36
1945,613.54,745.19
1946,736.72,717.71
1947,694.94,693.15
1948,625.47,676.8
1949,832.81,672.34
1950,690.47,677.73
1951,604.99,689.66
1952,673.06,704.81
1953,696.28,719.93
1954,643.54,731.86
1955,965.71,739.26
1956,687.86,741.46
1957,707.38,737.75
1958,773.63,727.47
1959,641.67,710.1
1960,682.66,687.46
1961,707.98,663.07
1962,606.4,640.7
1963,607.93,623.92
1964,707.15,616.28
1965,419.62,619.06
1966,678.1,630.36
1967,849.78,648.06
1968,563.81,670.09
1969,821.72,694.4
1970,552.63,718.8
1971,870.64,741.35
1972,621.24,760.03
1973,706.72,772.9
1974,741.75,777.86
1975,881.88,773.63
1976,865.49,761.82
1977,709.76,744.89
1978,750.99,725.39
1979,657.59,705.79
1980,734.94,688.37
1981,680.62,673.76
1982,598.45,661.82
1983,659.61,652.28
1984,471.5,644.92
1985,657.88,639.51
1986,700.2,636.19
1987,790.82,635.3
1988,635.15,637.27
1989,752.43,642.49
1990,558.67,651.34
1991,647.6,663.7
1992,477.37,678.6
1993,715.87,695.02
1994,690.65,711.83
1995,848.52,727.99
1996,831.28,742.24
1997,768.59,752.63
1998,698.9,757.01
1999,488.18,753.29
2000,1055.88,739.4
2001,797.21,714.01
2002,539.2,681.22
2003,492.09,646.82
2004,718.14,616.67
2005,530.71,596.58
2006,756.13,591.97
2007,508.79,601.15
2008,566.67,617.88
2009,752.16,635.86
2010,654.35,648.65
2011,680.08,650.13
2012,546.87,639.32
2013,584.95,621.37
2014,644.17,601.96
2015,495.11,586.61
2016,657.13,580.87
2017,662.34,587.92
2018,564.45,605.7
2019,622.7,631.53
2020,652.17,662.72
2021,700.57,696.7