Year	Tonnes
1892	212.686
1893	663.727
1894	304.361
1895	179.683
1896	363.033
1897	524.381
1898	656.393
1899	733.4
1900	513.38
1901	502.379
1902	399.703
1903	557.384
1904	803.073
1905	792.072
1906	836.076
1907	850.744
1908	920.417
1909	1019.426
1910	1323.787
1911	1158.772
1912	1140.437
1913	1353.123
1914	1646.483
1915	1708.822
1916	1818.832
1917	1738.158
1918	1690.487
1919	1767.494
1920	1859.169
1921	2445.889
1922	2629.239
1923	2805.255
1924	3281.965
1925	3619.329
1926	3424.978
1927	3960.36
1928	5221.808
1929	5236.476
1930	5192.472
1931	4583.75
1932	4547.08
1933	4224.384
1934	4228.051
1935	4712.095
1936	5804.861
1937	6127.557
1938	6226.566
1939	6945.298
1940	6637.27
1941	6182.562
1942	3300.3
1943	2709.913
1944	1426.463
1945	612.389
1955	3527.654
1956	2911.598
1957	2878.595
1958	5020.123
1959	6611.601
1960	7491.681
1961	7986.726
1962	9347.183
1963	9119.829
1964	11800.406
1965	13164.53
1966	19200.412
1967	22984.756
1968	23622.814
1969	27080.795
1970	28199.23
1971	24528.563
1972	23058.096
1973	25096.948
1974	19083.068
1975	21800.315
1976	13923.599
1977	15276.722
1978	15419.735
1979	16281.48
1980	16820.529
1981	17726.278
1982	18382.671
1983	19317.756
1984	17550.262
1985	21165.924
1986	23091.099
1987	25969.694
1988	23182.774
1989	17509.925
1990	21407.946
1991	21451.95
1992	21477.619
1993	23006.758
1994	26230.051
1995	29090.311
1996	34667.818
1997	45100.433
1998	47513.319
1999	47693.002
2000	53644.543
2001	61139.891
2002	70806.103
2003	78767.16
2004	90549.231
2005	98143.588
2006	102745.673
2007	104872.533
2008	117993.059
2009	128634.693
2010	142737.975
2011	152169.499
2012	142220.928
2013	147230.05
2014	166910.839