Year	metric tons
1960	907101
1961	970920
1962	993406
1963	993455.1
1964	1068109.1
1965	1188455.4
1966	1204233.8
1967	1308394
1968	1454802
1969	1386100
1970	1426066
1971	1374338
1972	1405539
1973	1431154
1974	1429814
1975	1436129
1976	1418459
1977	1337716
1978	1313419.4
1979	1153271
1980	1170003.5
1981	1181503.5
1982	1239595
1983	1178905.5
1984	1194425.5
1985	1222906.8
1986	1233945.6
1987	1269198.6
1988	1327483
1989	1308066.7
1990	1131229.2
1991	1078644.3
1992	1091922.4
1993	1099902.6
1994	1108820.3
1995	1195723.1
1996	1189563
1997	1220295.2
1998	1256867.3
1999	1191034.6
2000	1062915
2001	1090277.3
2002	883101.5
2003	888546.4
2004	810898.8
2005	853942.1
2006	959684.36
2007	818025.86
2008	918313.56
2009	927955.35
2010	970774.04
2011	1006430.3
2012	926228.77
2013	985028.91
2014	1059920.77
2015	972366.29
2016	911501.79
2017	948066.09
2018	930720.91
2019	882909.5
2020	798280.42
2021	803120.75
2022	809094.41