Year	Tonnes
1807	168.682
1819	253.023
1820	333.697
1821	359.366
1822	366.7
1823	348.365
1824	399.703
1825	403.37
1826	458.375
1827	476.71
1828	458.375
1829	476.71
1830	495.045
1831	480.377
1832	513.38
1833	429.039
1834	586.72
1835	634.391
1836	674.728
1837	707.731
1838	850.744
1839	1059.763
1840	1169.773
1841	1320.12
1842	1459.466
1843	1268.782
1844	1595.145
1845	1800.497
1846	2115.859
1847	2082.856
1848	2335.879
1849	2262.539
1850	2328.545
1851	2335.879
1852	2812.589
1853	3226.96
1854	3179.289
1855	3703.67
1856	4235.385
1857	4877.11
1858	7249.659
1859	5870.867
1860	6153.226
1861	6384.247
1862	6358.578
1863	5881.868
1864	5078.795
1865	5357.487
1866	3597.327
1867	4917.447
1868	6076.219
1869	6490.59
1870	7370.67
1871	10150.256
1872	10014.577
1873	10736.976
1874	9160.166
1875	7865.715
1876	8096.736
1877	7289.996
1878	7245.992
1879	8870.473
1880	23666.818
1881	10322.605
1882	10608.631
1883	11771.07
1884	11470.376
1885	12057.096
1886	11378.701
1887	12266.115
1888	11961.754
1889	12885.838
1890	13047.186
1891	14957.693
1892	14477.316
1893	17715.277
1894	18144.316
1895	20388.52
1896	21316.271
1897	23039.761
1898	24473.558
1899	24836.591
1900	27696.851
1901	28386.247
1902	25676.334
1903	25569.991
1904	26948.783
1905	28129.557
1906	33564.051
1907	42152.165
1908	58991.029
1909	42203.503
1910	57564.566
1911	48078.037
1912	49981.21
1913	59676.758
1914	48873.776
1915	34928.175
1916	8038.064
1917	3454.314
1918	3340.637
1919	3017.941
1920	14539.655
1921	19354.426
1922	18602.691
1923	17792.284
1924	20109.828
1925	19006.061
1926	18635.694
1927	20139.164
1928	21209.928
1929	24194.866
1930	18881.383
1931	18118.647
1932	15185.047
1933	14242.628
1934	13765.918
1935	13934.6
1936	13604.57
1937	15273.055
1938	5793.86
1939	6343.91
1940	7352.335
1941	7983.059
1942	8555.111
1943	9622.208
1944	9398.521
1945	4565.415
1946	12772.161
1947	17645.604
1948	24510.228
1949	26600.418
1950	20916.568
1951	23289.117
1952	22093.675
1953	21737.976
1954	24532.23
1955	29101.312
1956	28235.9
1957	29211.322
1958	28118.556
1959	27942.54
1960	30821.135
1961	31862.563
1962	33905.082
1963	36992.696
1964	38943.54
1965	38188.138
1966	39258.902
1967	39966.633
1968	42350.183
1969	44693.396
1970	50692.608
1971	52155.741
1972	56193.108
1973	60164.469
1974	57469.224
1975	54392.611
1976	58415.31
1977	56218.777
1978	57483.892
1979	61594.599
1980	52306.088
1981	56130.769
1982	53868.23
1983	51983.392
1984	54550.292
1985	54700.639
1986	54080.916
1987	57744.249
1988	53340.182
1989	54117.586
1990	57685.577
1991	61605.6
1992	56658.817
1993	57102.524
1994	57054.853
1995	59783.101
1996	63178.743
1997	62658.029
1998	63662.787
1999	61869.624
2000	62283.995
2001	65888.656
2002	67073.097
2003	72195.896
2004	72390.247
2005	74216.413
2006	72162.893
2007	69735.339
2008	69027.608
2009	62731.369
2010	67502.136
2011	65019.577
2012	62272.994
2013	62485.68
2014	58712.337