Year	Tonnes
1887	1085.432
1888	891.081
1889	1756.493
1890	1371.458
1891	938.752
1892	1386.126
1893	1554.808
1894	1994.848
1895	2266.206
1896	2306.543
1897	2082.856
1898	2350.547
1899	2922.599
1900	2071.855
1901	2493.56
1902	2816.256
1903	2863.927
1904	3799.012
1905	3986.029
1906	6259.569
1907	6259.569
1908	7623.693
1909	5940.54
1910	8914.477
1911	9952.238
1912	9486.529
1913	10153.923
1914	8679.789
1915	6945.298
1916	4990.787
1917	2233.203
1918	2522.896
1919	3729.339
1920	5896.536
1921	5544.504
1922	7304.664
1923	8452.435
1924	10967.997
1925	11246.689
1926	11268.691
1927	13384.55
1928	12750.159
1929	13142.528
1930	12779.495
1931	12856.502
1932	13113.192
1933	13245.204
1934	14253.629
1935	14011.607
1936	15111.707
1937	16728.854
1938	16365.821
1939	17396.248
1940	15881.777
1941	13956.602
1942	13494.56
1943	14092.281
1944	13967.603
1945	13681.577
1946	13718.247
1947	14532.321
1948	17410.916
1949	15383.065
1950	29952.056
1951	34997.848
1952	36130.951
1953	35170.197
1954	36787.344
1955	39599.933
1956	44341.364
1957	47656.332
1958	44238.688
1959	48998.454
1960	48815.104
1961	51180.319
1962	53695.881
1963	50083.886
1964	55727.399
1965	58866.351
1966	63138.406
1967	65543.958
1968	69082.613
1969	77329.696
1970	82734.854
1971	88939.418
1972	90156.862
1973	94065.884
1974	95569.354
1975	94931.296
1976	99786.404
1977	100791.162
1978	102639.33
1979	110703.063
1980	108737.551
1981	102041.609
1982	103424.068
1983	105213.564
1984	106522.683
1985	100596.811
1986	104212.473
1987	114942.115
1988	121473.042
1989	117090.977
1990	112147.861
1991	117098.311
1992	121352.031
1993	117927.053
1994	122408.127
1995	127963.632
1996	135000.605
1997	138003.878
1998	139815.376
1999	146984.361
2000	142136.587
2001	133720.822
2002	124714.67
2003	135062.944
2004	157589.325
2005	162110.736
2006	175436.614
2007	175176.257
2008	189107.19
2009	179961.692
2010	187919.082
2011	191633.753
2012	192356.152
2013	189851.591
2014	204024.546