Year	Tonnes
1800	407.037
1801	443.707
1802	451.041
1803	462.042
1804	458.375
1805	572.052
1806	520.714
1807	377.701
1808	502.379
1809	473.043
1810	568.385
1811	590.387
1812	454.708
1813	381.368
1814	502.379
1815	590.387
1816	678.395
1817	744.401
1818	924.084
1819	759.069
1820	748.068
1821	828.742
1822	909.416
1823	1221.111
1824	1276.116
1825	1327.454
1826	1221.111
1827	1309.119
1828	1210.11
1829	1067.097
1830	990.09
1831	810.407
1832	1034.094
1833	1074.431
1834	1129.436
1835	1210.11
1836	1371.458
1837	1474.134
1838	1587.811
1839	1683.153
1840	1969.179
1841	2141.528
1842	2284.541
1843	2247.871
1844	2394.551
1845	2794.254
1846	2951.935
1847	3025.275
1848	3047.277
1849	3006.94
1850	3204.958
1851	3461.648
1852	4132.709
1853	4319.726
1854	4781.768
1855	5625.178
1856	6321.908
1857	6721.611
1858	7711.701
1859	7117.647
1860	7491.681
1861	7675.031
1862	8811.801
1863	10062.248
1864	11228.354
1865	12431.13
1866	12163.439
1867	13303.876
1868	15130.042
1869	15625.087
1870	16677.516
1871	18987.726
1872	20648.877
1873	22368.7
1874	24517.562
1875	24077.522
1876	24609.237
1877	23153.438
1878	24352.547
1879	26508.743
1880	26369.397
1881	26252.053
1882	27267.812
1883	29952.056
1884	31228.172
1885	32625.299
1886	33457.708
1887	33703.397
1888	37531.745
1889	40549.686
1890	41899.142
1891	45379.125
1892	43131.254
1893	45371.791
1894	46130.86
1895	49031.457
1896	52768.13
1897	55137.012
1898	59893.111
1899	61968.633
1900	63358.426
1901	66952.086
1902	65543.958
1903	68543.564
1904	69438.312
1905	74946.146
1906	78756.159
1907	87267.266
1908	93097.796
1909	95613.358
1910	94623.268
1911	99683.728
1912	111025.759
1913	116302.572
1914	97083.825
1915	94821.286
1916	108865.896
1917	120981.664
1918	101608.903
1919	2731.915
1920	76442.282
1921	75008.485
1922	71829.196
1923	52592.114
1924	47876.352
1925	48114.707
1926	48169.712
1927	60718.186
1928	62944.055
1929	72753.28
1930	56614.813
1931	54872.988
1932	42012.819
1933	43241.264
1934	45254.447
1935	46189.532
1936	49940.873
1937	56387.459
1938	59992.12
1939	51943.055
1940	167383.882
1941	164937.993
1942	181762.189
1943	197948.327
1944	189195.198
1945	59508.076
1946	104685.516
1947	91627.329
1948	89005.424
1949	105521.592
1950	112224.868
1951	122243.112
1952	128157.983
1953	139320.331
1954	147703.093
1955	154344.03
1956	166569.808
1957	178846.924
1958	176899.747
1959	189836.923
1960	199767.159
1961	207434.856
1962	216815.042
1963	231219.018
1964	243114.766
1965	247221.806
1966	252678.302
1967	259282.569
1968	276073.762
1969	293653.36
1970	304441.674
1971	313246.141
1972	329952.993
1973	336128.221
1974	346876.198
1975	375559.472
1976	399035.606
1977	419024.423
1978	432056.941
1979	442489.556
1980	464575.897
1981	410062.275
1982	422211.046
1983	422339.391
1984	433894.108
1985	445899.866
1986	453369.545
1987	465353.301
1988	445976.873
1989	423787.856
1990	368423.49
1991	361643.207
1992	354745.58
1993	353253.111
1994	333972.025
1995	344213.956
1996	355754.005
1997	349523.772
1998	325431.582
1999	315721.366
2000	299289.539
2001	301284.387
2002	294834.134
2003	302252.475
2004	304416.005
2005	302538.501
2006	318940.992
2007	314272.901
2008	314848.62
2009	297617.387
2010	316264.082
2011	316997.482
2012	299931.264
2013	302278.144
2014	285739.974