Year	Tonnes
1899	95.342
1902	95.342
1903	1965.512
1904	2090.19
1905	2299.209
1906	17124.89
1907	16853.532
1908	22750.068
1909	20854.229
1910	18764.039
1911	27869.2
1912	9794.557
1913	10766.312
1914	15119.041
1915	16101.797
1916	17979.301
1917	19867.806
1918	21059.581
1919	24275.54
1920	26791.102
1921	25309.634
1922	26655.423
1923	32177.925
1924	35122.526
1925	33248.689
1926	29614.692
1927	33553.05
1928	34143.437
1929	35848.592
1930	37953.45
1931	40292.996
1932	38631.845
1933	42251.174
1934	49313.816
1935	57674.576
1936	65092.917
1937	60626.511
1938	55349.698
1939	67212.443
1940	86170.833
1941	107703.457
1942	113963.026
1943	97384.519
1944	97945.57
1945	50391.914
1946	31301.512
1947	33615.389
1948	23872.17
1949	59357.729
1950	78712.155
1951	101806.921
1952	128326.665
1953	134212.2
1954	161388.337
1955	191047.033
1956	216525.349
1957	256557.988
1958	525811.13
1959	721749.941
1960	780726.302
1961	552066.85
1962	440359.029
1963	436695.696
1964	436923.05
1965	475972.933
1966	522789.522
1967	433234.048
1968	468928.626
1969	577237.138
1970	771617.474
1971	876633.02
1972	931575.681
1973	968542.708
1974	988014.478
1975	1145607.47
1976	1196193.735
1977	1310310.775
1978	1462168.579
1979	1494859.884
1980	1467192.369
1981	1451501.276
1982	1580260.647
1983	1667029.201
1984	1814908.31
1985	1966553.428
1986	2068969.071
1987	2209708.531
1988	2369501.723
1989	2408540.605
1990	2442431.019
1991	2565594.548
1992	2690455.898
1993	2878694.009
1994	3058241.33
1995	3320285.15
1996	3463089.131
1997	3469510.048
1998	3324344.519
1999	3318055.614
2000	3405179.867
2001	3487566.356
2002	3850269.326
2003	4540417.061
2004	5233538.733
2005	5896957.705
2006	6529291.518
2007	7030797.772
2008	7553070.247
2009	8001008.965
2010	8776040.416
2011	9733538.12
2012	10028573.939
2013	10258007.128
2014	10291926.878