Year Tonnes
1792 469.376
1793 480.377
1794 443.707
1795 447.374
1796 535.382
1797 550.05
1798 575.719
1799 627.057
1800 795.739
1801 535.382
1802 553.717
1803 535.382
1804 1008.425
1805 1041.428
1806 938.752
1807 2691.578
1808 898.415
1809 931.418
1810 979.089
1811 927.751
1812 913.083
1813 891.081
1814 883.747
1815 1030.427
1816 2387.217
1817 3384.641
1818 3534.988
1819 3278.298
1820 3384.641
1821 3534.988
1822 3633.997
1823 4037.367
1824 3234.294
1825 4341.728
1826 4191.381
1827 4543.413
1828 4543.413
1829 3633.997
1830 4796.436
1831 4594.751
1832 3450.647
1833 4382.065
1834 4415.068
1835 4935.782
1836 5196.139
1837 5955.208
1838 6637.27
1839 7025.972
1840 9182.168
1841 9556.202
1842 10890.99
1843 10307.937
1844 10890.99
1845 12621.814
1846 13197.533
1847 13850.259
1848 12838.167
1849 13633.906
1850 15152.044
1851 16882.868
1852 19189.411
1853 20777.222
1854 24385.55
1855 28639.27
1856 30949.48
1857 32966.33
1858 35639.573
1859 33835.409
1860 36424.311
1861 41363.76
1862 45577.143
1863 49423.826
1864 56688.153
1865 63519.774
1866 62958.723
1867 69210.958
1868 74429.099
1869 77656.059
1870 76702.639
1871 85419.098
1872 92184.713
1873 98447.949
1874 71653.18
1875 101601.569
1876 103523.077
1877 101385.216
1878 104630.511
1879 110937.751
1880 124604.66
1881 134373.548
1882 143783.07
1883 153218.261
1884 157655.331
1885 161314.997
1886 163166.832
1887 170530.168
1888 186499.953
1889 199011.757
1890 208402.944
1891 221021.091
1892 215164.892
1893 220892.746
1894 229686.212
1895 238479.678
1896 256469.98
1897 273778.22
1898 285611.629
1899 303532.258
1900 327026.727
1901 325823.951
1902 319450.705
1903 343880.259
1904 356414.065
1905 382636.782
1906 362233.594
1907 442544.561
1908 447007.3
1909 445936.536
1910 445731.184
1911 458961.72
1912 499529.741
1913 535521.346
1914 498334.299
1915 463285.113
1916 501106.551
1917 525008.057
1918 503834.799
1919 387744.913
1920 429559.714
1921 473567.381
1922 455833.769
1923 332200.864
1924 452163.102
1925 458441.006
1926 413575.261
1927 481436.763
1928 505301.599
1929 539412.033
1930 462111.673
1931 385911.413
1932 347602.264
1933 365152.526
1934 408980.51
1935 452738.821
1936 500090.792
1937 564024.937
1938 601828.04
1939 649213.014
1940 654904.198
1941 661380.12
1942 668475.765
1943 680023.148
1944 600764.61
1945 1804.164
1946 1294.451
1947 317932.567
1948 378152.041
1949 432540.985
1950 511150.464
1951 577394.819
1952 611541.923
1953 624075.729
1954 660349.693
1955 724177.495
1956 766909.046
1957 778636.112
1958 757092.487
1959 756524.102
1960 814737.727
1961 835654.295
1962 884029.359
1963 946412.363
1964 969870.162
1965 961051.027
1966 952367.571
1967 937153.188
1968 985762.94
1969 1053034.055
1970 1027049.693
1971 1038505.401
1972 1043004.81
1973 1087503.855
1974 1064599.773
1975 1004424.303
1976 1093165.703
1977 1055065.573
1978 1081904.346
1979 1120968.897
1980 1103220.617
1981 1051688.266
1982 1018956.624
1983 1015036.601
1984 1036763.576
1985 1047606.895
1986 1051218.89
1987 1036279.532
1988 1033111.244
1989 1017185.463
1990 1013731.149
1991 929973.202
1992 891975.748
1993 877645.112
1994 865558.68
1995 864110.215
1996 889614.2
1997 862276.715
1998 855364.42
1999 822460.429
2000 829977.779
2001 853662.932
2002 829724.756
2003 822812.461
2004 816802.248
2005 797180.131
2006 816472.218
2007 780546.619
2008 780564.954
2009 722263.321
2010 758859.981
2011 732497.918
2012 739861.254
2013 757312.507
2014 719883.438