Year	metric tons
1960	29800
1961	43300
1962	52000
1963	47700
1964	50300
1965	53500
1966	59200
1967	86200
1968	83600
1969	57600
1970	54500
1971	37696
1972	110687
1973	105282
1974	62387
1975	66527
1976	75043
1977	63881
1978	79467
1979	63246
1980	76000
1981	94431
1982	71042
1983	57104
1984	78514
1985	70775.32
1986	82474.48
1987	84450.34
1988	86616.34
1989	92059.3
1990	119674
1991	103535
1992	144248
1993	124969.5
1994	99768.5
1995	131006
1996	130099
1997	148053
1998	134616
1999	127426
2000	137061
2001	146164
2002	124799
2003	130147
2004	112492
2005	121002
2006	103997
2007	121655
2008	112892
2009	106450
2010	81168
2011	87491
2012	72004
2013	70706
2014	92879
2015	81951
2016	69381
2017	88261.5
2018	81581
2019	112072.5
2020	91922.46
2021	130030.15
2022	107570