Year	metric tons
1961	813509
1962	844874
1963	823259
1964	768293
1965	890145
1966	806533
1967	931680
1968	824356
1969	892523
1970	761410
1971	999618
1972	857792
1973	691000
1974	1103646
1975	848296
1976	889201
1977	927535
1978	976041
1979	864640
1980	965099
1981	996151
1982	922171
1983	843413
1984	1042188
1985	1124582
1986	1007637
1987	1033533
1988	1243839
1989	1126701
1990	1196361
1991	966205.13
1992	1582878.2899999998
1993	1990322.32
1994	1789795.08
1995	1683258.0700000003
1996	1989059
1997	1848736.13
1998	1634078.3800000001
1999	1563116.3399999999
2000	1831908.89
2001	1841297.32
2002	1593652.82
2003	1652135.4000000001
2004	1786689.06
2005	2012937.83
2006	1953988.6500000001
2007	1918416.54
2008	2033182.12
2009	2267436.6599999997
2010	2282717.64
2011	2035939.87
2012	2380803.1100000003
2013	2304706.8400000003
2014	2419431.26
2015	2850864.1
2016	1958959.8900000004
2017	2584143.6500000004
2018	2113720
2019	2576878.8899999997
2020	2827258.0100000002
2021	2485015.8
2022	2793337.65