Year	metric tons
1960	76200
1961	82600
1962	85900
1963	87500
1964	97600
1965	106600
1966	111700
1967	118076
1968	114976
1969	118981
1970	121065
1971	134582
1972	153039
1973	193041
1974	218108
1975	226578
1976	217663
1977	216696
1978	221219
1979	225238
1980	232530
1981	227216
1982	231971
1983	262960
1984	250359
1985	244982
1986	257938
1987	251955
1988	265009
1989	290350
1990	315161
1991	328743
1992	373391
1993	386158
1994	359929
1995	366372
1996	439287
1997	483542
1998	429554
1999	441081
2000	436109
2001	431357
2002	398149
2003	469382
2004	434577
2005	399902
2006	368433
2007	412405
2008	428352
2009	446271
2010	409794.58999999997
2011	427469.22
2012	461476.47
2013	470302.39
2014	459542.41
2015	426654.63
2016	476251.17000000004
2017	535950.3099999999
2018	485762.67
2019	517151.27
2020	459463.46
2021	515107.63
2022	535356.2899999999