Year	metric tons
1961	35592
1962	37068
1963	37208
1964	39600
1965	43900
1966	46000
1967	48200
1968	51400
1969	52700
1970	52900
1971	55100
1972	56300
1973	58500
1974	59800
1975	63000
1976	63200
1977	67400
1978	68600
1979	71000
1980	73700
1981	75400
1982	78100
1983	83800
1984	87500
1985	62900
1986	81129
1987	69239
1988	83383
1989	96757
1990	97948
1991	114785
1992	31031
1993	74900
1994	116234
1995	70885
1996	89320
1997	157984
1998	121180
1999	73899
2000	120979
2001	121744
2002	87998
2003	97334
2004	127535
2005	129138
2006	186008.3
2007	116183
2008	112580
2009	111738
2010	118357.63
2011	118338.71
2012	165800
2013	86599.74
2014	111718.32
2015	113528.8
2016	74368
2017	137559
2018	152898
2019	61400
2020	169575
2021	160647
2022	173581.44