Year	Tonnes
1959	11001
1960	22002
1961	33003
1962	44004
1963	55005
1964	66006
1965	80674
1966	99009
1967	117344
1968	135679
1969	154014
1970	183350
1971	212686
1972	242022
1973	271358
1974	300694
1975	333697
1976	374034
1977	414371
1978	443707
1979	465709
1980	513380
1981	561051
1982	608722
1983	656393
1984	704064
1985	751735
1986	795739
1987	843410
1988	894748
1989	946086
1990	1008425
1991	1074431
1992	1140437
1993	1210110
1994	1279783
1995	1353123
1996	1430130
1997	1510804
1998	1598812
1999	1690487
2000	1793163
2001	1895839
2002	1998515
2003	2130527
2004	2273540
2005	2412886
2006	2574234
2007	2676910
2008	2783253
2009	2915265
2010	3076613
2011	3212292
2012	3355305
2013	3531321
2014	3685335