Year	metric tons
1961	14367100
1962	16246900
1963	13952800
1964	16074600
1965	15339500
1966	17367400
1967	15591101
1968	20328850
1969	20313080
1970	22156220
1971	22796490
1972	21647980
1973	25179300
1974	25483788
1975	25242090
1976	25873084
1977	26489786
1978	29800800
1979	29888191
1980	33642843
1981	37283478
1982	36818521
1983	40389883
1984	43424273
1985	43362447
1986	45647142
1987	45233872
1988	48328093
1989	50918096
1990	51912780
1991	50944146
1992	56235467
1993	54640825
1994	53510380
1995	57990042
1996	60408927
1997	58147907
1998	59406188
1999	60070424
2000	61575000
2001	59808000
2002	61074973
2003	63024042
2004	65313711
2005	66674990
2006	66064399
2007	67878527
2008	73984922
2009	76643740
2010	77610636
2011	75902250
2012	79092022
2013	78606853
2014	78067426
2015	80643435
2016	77609413
2017	84176015
2018	89454472
2019	74254033
2020	71575202.24
2021	71432294.22
2022	78312977.08