Year	Tonnes
1830	0.61322
1831	0.73587
1832	0.49058
1833	0.61322
1850	3.80199
1855	11.52861
1858	16.18912
1859	17.17028
1860	22.68929
1861	28.82154
1862	26.0007
1863	27.22715
1864	30.53856
1865	29.18947
1866	92.22891
1867	105.84249
1868	88.05899
1869	119.45607
1870	129.63559
1871	175.01417
1872	179.67468
1873	168.63664
1874	204.69422
1875	235.60072
1876	292.50792
1877	298.51752
1878	390.13321
1879	400.31273
1880	469.60706
1881	494.6266
1882	520.99524
1883	592.98776
1884	602.06348
1885	655.78191
1886	672.58425
1887	711.70795
1888	742.36916
1889	801.72926
1890	907.93968
1891	999.67802
1892	1058.1796
1893	1240.30718
1894	1263.24176
1895	1451.50158
1896	1477.62492
1897	1708.4425
1898	1916.0802
1899	2222.81492
1900	2518.02103
1901	2585.10775
1902	2496.80347
1903	2442.34917
1904	2717.31888
1905	2425.54682
1906	2766.6221
1907	3098.86695
1908	3117.8769
1909	3291.29669
1910	3227.76666
1911	3346.48686
1912	3790.82908
1913	4118.04549
1914	3716.62896
1915	3411.36598
1916	3635.92866
1917	3346.24157
1918	1334.49841
1919	1139.86106
1920	1039.41494
1921	1127.22864
1922	1374.72591
1923	1518.5883
1924	1809.25655
1925	1785.70874
1926	2587.31536
1927	3216.72863
1928	3573.62509
1929	3848.5948
1930	5232.15114
1931	6285.67024
1932	7081.88048
1933	7914.51624
1934	9573.53287
1935	10836.65198
1936	12426.25164
1937	12706.37243
1938	13410.96699
1939	13575.43371
1940	16275.21437
1941	14298.42499
1942	9840.28538
1943	12561.65153
1944	11764.58278
1945	12455.44111
1946	13997.94515
1947	16855.93765
1948	17936.6839
1949	20389.70317
1950	22728.04952
1951	24632.47845
1952	26377.95969
1953	27906.85015
1954	30479.20284
1955	34560.94546
1956	37892.83759
1957	41466.83061
1958	44261.17044
1959	46535.2509
1960	48450.47258
1961	49965.38154
1962	52440.96745
1963	56239.52316
1964	59810.818
1965	63447.97311
1966	67004.55056
1967	70063.19
1968	72031.63954
1969	75016.32415
1970	78902.8162
1971	83745.81529
1972	88127.54717
1973	91866.62014
1974	95383.09274
1975	100280.1782
1976	104148.7641
1977	107699.57725
1978	111403.94173
1979	112331.01401
1980	116758.98299
1981	114553.09306
1982	116719.00077
1983	118392.2442
1984	119457.7825
1985	128831.89487
1986	129183.76289
1987	134626.12727
1988	138325.83124
1989	135428.46976
1990	126976.8918
1991	122387.89016
1992	111806.83
1993	116232.899
1994	108664.211
1995	103435.069
1996	106170.651
1997	107234.081
1998	119144.497
1999	123035.184
2000	121828.741
2001	123453.222
2002	128348.667
2003	127142.224
2004	126214.473
2005	117248.658
2006	120288.601
2007	120200.593
2008	123900.596
2009	107131.405
2010	104168.469
2011	113684.334
2012	115814.861
2013	103354.395
2014	105213.564