Year	Tonnes
1860	64.85841
1861	213.23314
1862	362.49633
1863	511.75953
1864	661.02273
1865	810.28592
1866	959.54912
1867	1107.92384
1868	1257.18704
1869	1406.45024
1870	1555.71343
1871	1704.97663
1872	1853.35135
1873	2002.61455
1874	2151.87774
1875	2301.14094
1876	3977.68648
1877	4179.36949
1878	4381.0525
1879	4708.00998
1880	4987.87847
1881	5267.74696
1882	5386.80213
1883	5753.74082
1884	5942.98523
1885	6239.73468
1886	6559.58439
1887	6890.09575
1888	7384.97432
1889	7818.54837
1890	8361.4044
1891	8668.8155
1892	8800.30927
1893	8995.77298
1894	9221.44472
1895	9570.61398
1896	9806.0589
1897	10378.23449
1898	10610.12553
1899	10885.55166
1900	10806.47771
1901	11291.58309
1902	11442.62323
1903	11657.63331
1904	11771.35765
1905	12117.8615
1906	12654.49823
1907	13299.52847
1908	13544.74658
1909	13462.11874
1910	13321.74026
1911	13490.54982
1912	14354.14403
1913	15014.27828
1914	13687.79047
1915	13657.58245
1916	14536.28067
1917	13669.13258
1918	11654.07943
1919	11009.93766
1920	10919.31357
1921	10486.628
1922	9359.15779
1923	9892.24063
1924	12141.85023
1925	11426.63075
1926	11585.66713
1927	12433.26885
1928	13090.73769
1929	14643.78571
1930	12909.48952
1931	12078.76876
1932	10527.49768
1933	9628.36462
1934	9617.70297
1935	9901.12534
1936	10757.61178
1937	13030.32163
1938	14930.76197
1939	16403.84756
1940	18488.20148
1941	18609.03359
1942	20070.56905
1943	22159.36533
1944	21127.85002
1945	11212.50914
1946	13955.22037
1947	15837.0028
1948	17116.40163
1949	17993.32291
1950	18525.51728
1951	19740.94616
1952	21107.41518
1953	21876.83142
1954	23363.24408
1955	24251.71549
1956	26023.32747
1957	27180.11724
1958	29698.0452
1959	29725.58782
1960	31703.32517
1961	34409.60907
1962	36668.99185
1963	38572.98607
1964	40143.80352
1965	39115.8421
1966	38895.50119
1967	38814.6503
1968	40609.36254
1969	43111.29801
1970	49427.44124
1971	51857.41053
1972	52341.62745
1973	52563.7453
1974	53182.1214
1975	55653.84885
1976	57829.71532
1977	59570.2308
1978	60123.74849
1979	58568.03506
1980	59266.37358
1981	58633.78194
1982	58069.6026
1983	58162.00362
1984	60131.74473
1985	59321.45881
1986	59740.81731
1987	59273.48135
1988	58332.59013
1989	56418.82273
1990	52760.09748
1991	48656.24806
1992	44183.683
1993	42881.898
1994	40421.341
1995	42115.495
1996	41312.422
1997	41048.398
1998	40480.013
1999	39240.567
2000	35885.262
2001	39357.911
2002	39251.568
2003	39493.59
2004	38749.189
2005	39357.911
2006	39104.888
2007	36780.01
2008	37711.428
2009	34037.094
2010	36240.961
2011	34524.805
2012	32764.645
2013	33091.008
2014	30678.122