Year	Tonnes
1865	150.347
1866	209.019
1867	227.354
1868	176.016
1869	267.691
1870	157.681
1871	198.018
1872	245.689
1873	238.355
1874	256.69
1875	352.032
1876	275.025
1877	447.374
1878	326.363
1879	124.678
1880	139.346
1881	183.35
1882	154.014
1883	161.348
1884	176.016
1885	194.351
1886	135.679
1887	245.689
1888	267.691
1889	403.37
1890	366.7
1891	403.37
1892	410.704
1893	425.372
1894	392.369
1895	374.034
1896	443.707
1897	315.362
1898	524.381
1899	671.061
1900	1037.761
1901	949.753
1902	1048.762
1903	1206.443
1904	1367.791
1905	1532.806
1906	1580.477
1907	1881.171
1908	1723.49
1909	1958.178
1910	1884.838
1911	2229.536
1912	1998.515
1913	2038.852
1914	1664.818
1915	1037.761
1916	513.38
1917	392.369
1918	458.375
1919	938.752
1920	1404.461
1921	843.41
1922	1012.092
1923	1474.134
1924	2453.223
1925	2368.882
1926	3010.607
1927	3281.965
1928	3127.951
1929	3553.323
1930	3975.028
1931	3942.025
1932	4004.364
1933	4668.091
1934	5797.527
1935	5940.54
1936	5870.867
1937	4250.053
1938	4638.755
1939	4910.113
1940	5474.831
1941	5625.178
1942	4950.45
1943	6123.89
1944	7029.639
1945	7095.645
1946	7029.639
1947	7484.347
1948	7708.034
1949	7975.725
1950	9497.53
1951	10194.26
1952	10483.953
1953	12977.513
1954	13446.889
1955	13633.906
1956	14374.64
1957	15988.12
1958	16054.126
1959	17212.898
1960	16820.529
1961	17363.245
1962	21631.633
1963	22669.394
1964	26336.394
1965	27388.823
1966	31547.201
1967	33523.714
1968	36314.301
1969	38807.861
1970	42639.876
1971	47733.339
1972	53857.229
1973	59486.074
1974	61136.224
1975	65697.972
1976	73721.368
1977	81572.415
1978	77256.356
1979	75576.87
1980	75763.887
1981	79874.594
1982	86988.574
1983	90541.897
1984	95796.708
1985	106717.034
1986	116881.958
1987	129907.142
1988	126309.815
1989	139316.664
1990	145858.592
1991	148619.843
1992	153108.251
1993	159136.799
1994	156848.591
1995	171974.966
1996	188205.108
1997	198535.047
1998	200614.236
1999	196771.22
2000	216151.315
2001	194552.685
2002	205685.697
2003	218523.864
2004	225421.491
2005	237390.579
2006	261614.781
2007	284658.209
2008	283979.814
2009	277844.923
2010	298002.422
2011	320840.498
2012	329560.624
2013	324771.522
2014	345981.45