Year Tonnes
1802 2240.537
1804 2178.198
1810 2123.193
1811 2053.52
1812 2218.535
1813 2049.853
1814 2093.857
1815 2343.213
1816 2500.894
1817 2662.242
1818 2383.55
1819 2559.566
1820 2904.264
1821 3014.274
1822 3171.955
1823 3171.955
1824 3520.32
1825 3960.36
1826 4092.372
1827 5914.871
1828 6248.568
1829 6079.886
1830 6556.596
1831 6057.884
1832 6684.941
1833 7253.326
1834 8929.145
1835 9266.509
1836 10645.301
1837 11360.366
1838 11877.413
1839 11580.386
1840 11807.74
1841 13831.924
1842 14539.655
1843 14561.657
1844 15273.055
1845 17850.956
1846 18544.019
1847 20857.896
1848 16703.185
1849 17399.915
1850 19633.118
1851 20054.823
1852 21587.629
1853 25360.972
1854 29236.991
1855 33098.342
1856 34660.484
1857 35309.543
1858 34623.814
1859 35019.85
1860 38162.469
1861 41275.752
1862 43560.293
1863 44224.02
1864 46867.927
1865 49343.152
1866 53604.206
1867 54322.938
1868 55577.052
1869 56988.847
1870 50578.931
1871 50303.906
1872 60974.876
1873 65903.324
1874 62694.699
1875 65312.937
1876 65411.946
1877 63978.149
1878 65276.267
1879 67553.474
1880 76211.261
1881 78048.428
1882 82375.488
1883 86390.853
1884 82980.543
1885 79779.252
1886 79137.527
1887 83358.244
1888 86724.55
1889 88869.745
1890 97897.899
1891 98062.914
1892 98202.26
1893 96409.097
1894 101982.937
1895 102859.35
1896 106368.669
1897 111352.122
1898 115140.133
1899 120398.611
1900 129382.761
1901 125107.039
1902 117758.371
1903 129448.767
1904 126100.796
1905 127530.926
1906 136680.091
1907 145715.579
1908 146834.014
1909 150218.655
1910 150735.702
1911 157035.608
1912 158707.76
1913 171252.567
1914 118447.767
1915 103317.725
1916 109778.979
1917 121704.063
1918 108539.533
1919 116236.566
1920 151901.808
1921 138022.213
1922 163284.176
1923 184340.09
1924 206804.132
1925 214002.453
1926 213907.111
1927 213214.048
1928 211809.587
1929 234497.316
1930 237848.954
1931 217691.455
1932 191952.782
1933 199569.141
1934 201534.653
1935 195550.109
1936 198260.022
1937 217900.474
1938 201963.692
1939 194776.372
1940 137849.864
1941 120020.91
1942 122606.145
1943 125360.062
1944 80057.944
1945 107259.75
1946 165389.034
1947 183790.04
1948 196683.212
1949 229264.507
1950 202473.405
1951 228949.145
1952 227207.32
1953 214761.522
1954 226576.596
1955 239220.412
1956 268765.431
1957 277775.25
1958 266425.885
1959 262161.164
1960 271218.654
1961 281211.229
1962 298706.486
1963 334019.696
1964 345303.055
1965 351852.317
1966 347235.564
1967 372009.816
1968 384631.63
1969 413259.899
1970 439013.24
1971 462434.369
1972 480729.032
1973 516599.626
1974 499071.366
1975 446919.292
1976 505602.293
1977 480857.377
1978 505858.983
1979 529155.434
1980 505363.938
1981 454700.666
1982 436893.714
1983 422603.415
1984 405342.846
1985 400880.107
1986 385614.386
1987 377491.981
1988 372207.834
1989 390649.177
1990 375691.484
1991 390689.514
1992 365893.26
1993 359916.05
1994 338119.402
1995 349160.739
1996 375306.449
1997 351562.624
1998 377444.31
1999 368918.535
2000 362226.26
2001 377535.985
2002 375075.428
2003 380689.605
2004 383758.884
2005 385368.697
2006 375764.824
2007 369142.222
2008 366325.966
2009 351899.988
2010 353033.091
2011 331804.828
2012 333227.624
2013 334096.703
2014 303275.568