Year	metric tons
1961	182648377
1962	196062466
1963	217451011
1964	231401436
1965	247476050
1966	261812411
1967	267382058
1968	268579125
1969	268807028
1970	294565759
1971	315148175
1972	309617260
1973	327131493
1974	345341618
1975	353541683
1976	372795347
1977	358100129
1978	388975368
1979	408534092
1980	406403806
1981	409991960
1982	448189801
1983	474718461
1984	506671798
1985	487175032
1986	501731126
1987	508935989
1988	510981482
1989	530818991
1990	553156743.92
1991	560772655.64
1992	695975493.1200001
1993	692934549.88
1994	668671415.2099999
1995	669125543.0500001
1996	709393663.1700001
1997	729814025.89
1998	692364944.89
1999	709979323.5000001
2000	658488956.6999999
2001	706292795.8900001
2002	699474837.1600001
2003	675536132.65
2004	740098211.4000001
2005	738736741.1199999
2006	769327140.2400001
2007	783359996.03
2008	861882703.9799998
2009	857568752.88
2010	830735070.2899998
2011	917269522.75
2012	901783572.31
2013	969924887.91
2014	988978320.18
2015	1042500731.8
2016	1036074344.78
2017	1089152287.55
2018	1052649905.6700001
2019	1076552265.99
2020	1091983275.8999999
2021	1098252010.8400002
2022	1140824468.47