Year	metric tons
1961	741457557
1962	791505783
1963	837943511
1964	850141615
1965	873927182
1966	903600935
1967	970230679
1968	987687017
1969	1003163543
1970	1004893607
1971	1112299582
1972	1083668408
1973	1134369178
1974	1124169337
1975	1208346752
1976	1236472262
1977	1252196873
1978	1341257109
1979	1347507518
1980	1351131799
1981	1461970454
1982	1493231379
1983	1423905085
1984	1601313489
1985	1621668094
1986	1615375354
1987	1557568287
1988	1526145539
1989	1652723123
1990	1714523002.69
1991	1704458960.2400005
1992	1949795835.84
1993	1891374660.1099994
1994	1956272138.6899998
1995	1876668893.6599996
1996	2043469093.5800006
1997	2087667411.5099993
1998	2071919326.1399999
1999	2069798540.3799999
2000	2054457989.2300007
2001	2096055068.17
2002	2045713872.75
2003	2068887308.4399996
2004	2275837029.6999993
2005	2257379867.47
2006	2255397589.01
2007	2347281562.3299994
2008	2520756199.620001
2009	2488527705.599999
2010	2463449668.949999
2011	2585246633.42
2012	2556927410.820001
2013	2763399286.889999
2014	2817949640.74
2015	2837713502.2400007
2016	2915083184.740001
2017	2967136168.1700015
2018	2914528863.1700006
2019	2963503734.770002
2020	3003637255.450001
2021	3071264098.699999
2022	3059640309.609999