Year	metric tons
1961	50164
1962	50627
1963	45460
1964	39795
1965	40324
1966	44125
1967	70768
1968	59334
1969	68499
1970	72771
1971	116330
1972	129898
1973	96285
1974	124372
1975	101091
1976	105946
1977	75660
1978	103167
1979	73240
1980	104617
1981	99138
1982	55901
1983	33220
1984	154327
1985	178426
1986	108162
1987	104200
1988	140385
1989	99607
1990	109975
1991	63079
1992	95608.09
1993	85555.45
1994	85873.37
1995	152068
1996	120593
1997	139182.11
1998	119176
1999	125057
2000	113870.43
2001	83693.52
2002	68829.59
2003	70528.89
2004	69385.08
2005	75861.15
2006	68496.25
2007	27540.66
2008	61408.33
2009	76480.67
2010	86407.84
2011	77388.12
2012	84187.4
2013	121413.61
2014	121572.06
2015	84589.38
2016	35578.35
2017	86633.02
2018	115701.5
2019	97691.39
2020	89694.14
2021	102695.67
2022	129693.73