Year Tonnes
1751 9358.184
1752 9361.851
1753 9361.851
1754 9365.518
1755 9369.185
1756 10014.577
1757 10018.244
1758 10021.911
1759 10025.578
1760 10025.578
1761 10982.665
1762 10986.332
1763 10989.999
1764 10993.666
1765 10997.333
1766 12269.782
1767 12273.449
1768 12277.116
1769 12280.783
1770 12284.45
1771 13622.905
1772 13626.572
1773 13630.239
1774 13633.906
1775 13637.573
1776 15049.368
1777 15053.035
1778 15056.702
1779 15060.369
1780 15067.703
1781 16857.199
1782 16860.866
1783 16868.2
1784 16871.867
1785 16879.201
1786 19163.742
1787 19171.076
1788 19174.743
1789 19182.077
1790 19189.411
1791 21433.615
1792 21440.949
1793 21448.283
1794 21451.95
1795 21459.284
1796 22431.039
1797 23560.475
1798 24535.897
1799 25819.347
1800 26655.423
1801 26732.43
1802 26871.776
1803 30216.08
1804 30355.426
1805 31488.529
1806 33278.025
1807 33285.359
1808 33296.36
1809 33307.361
1810 33318.362
1811 35591.902
1812 36967.027
1813 37407.067
1814 38118.465
1815 38954.541
1816 41470.103
1817 41957.814
1818 42056.823
1819 42372.185
1820 42562.869
1821 42907.567
1822 44557.717
1823 46911.931
1824 49123.132
1825 49632.845
1826 50186.562
1827 52273.085
1828 52632.451
1829 53380.519
1830 67920.174
1831 65818.983
1832 65642.967
1833 65547.625
1834 65591.629
1835 65316.604
1836 76508.288
1837 73831.378
1838 75873.897
1839 77843.076
1840 81026.032
1841 81906.112
1842 85441.1
1843 89166.772
1844 93548.837
1845 100068.763
1846 95771.039
1847 103633.087
1848 109375.609
1849 116100.887
1850 122705.154
1851 116749.946
1852 116335.575
1853 115693.85
1854 139415.673
1855 130548.867
1856 140490.104
1857 137974.542
1858 135224.292
1859 150134.314
1860 168087.946
1861 175190.925
1862 169609.751
1863 180372.396
1864 194068.641
1865 205656.361
1866 211904.929
1867 217552.109
1868 213393.731
1869 223888.685
1870 228681.454
1871 242234.686
1872 255197.531
1873 264874.744
1874 257397.731
1875 271710.032
1876 271240.656
1877 276125.1
1878 271196.652
1879 272868.804
1880 297368.031
1881 312567.746
1882 315222.654
1883 327998.482
1884 319359.03
1885 315549.017
1886 312685.09
1887 320704.819
1888 333440.31
1889 345306.722
1890 353311.783
1891 360766.794
1892 353297.115
1893 316469.434
1894 362398.609
1895 365849.256
1896 376289.205
1897 386285.447
1898 387194.863
1899 414891.714
1900 420084.186
1901 411037.697
1902 426989.147
1903 430337.118
1904 432346.634
1905 438030.484
1906 453721.577
1907 473956.083
1908 462342.694
1909 466468.069
1910 470116.734
1911 481744.791
1912 456259.141
1913 498730.335
1914 483578.291
1915 489881.864
1916 507487.131
1917 501579.594
1918 467230.805
1919 456504.83
1920 470399.093
1921 320066.761
1922 428573.291
1923 455265.384
1924 476372.636
1925 450025.241
1926 246572.747
1927 467117.128
1928 438015.816
1929 461070.245
1930 441455.462
1931 412574.17
1932 396241.352
1933 392493.678
1934 423571.503
1935 429482.707
1936 454194.62
1937 468543.591
1938 449339.512
1939 452826.829
1940 475532.893
1941 470065.396
1942 469313.661
1943 455221.38
1944 442405.215
1945 417982.995
1946 436512.346
1947 461675.3
1948 475987.601
1949 485543.803
1950 500849.861
1951 545282.9
1952 528858.407
1953 540530.468
1954 553163.283
1955 577116.127
1956 574479.554
1957 570863.892
1958 556390.243
1959 546947.718
1960 584299.78
1961 588938.535
1962 593360.937
1963 603822.888
1964 608355.3
1965 622619.93
1966 618564.228
1967 592517.527
1968 606969.174
1969 628857.497
1970 653063.364
1971 660863.073
1972 648486.948
1973 660034.331
1974 617607.141
1975 603643.205
1976 598912.775
1977 604746.972
1978 605084.336
1979 644893.288
1980 579290.658
1981 560819.979
1982 548520.861
1983 545741.275
1984 529335.117
1985 559855.558
1986 568777.369
1987 571868.65
1988 570464.189
1989 581721.879
1990 555924.534
1991 566830.192
1992 556280.233
1993 545711.939
1994 546738.699
1995 538117.582
1996 551436.126
1997 527343.936
1998 531905.684
1999 530937.596
2000 541784.582
2001 545862.286
2002 528642.054
2003 540006.087
2004 539239.684
2005 542580.321
2006 541458.219
2007 528425.701
2008 520688.331
2009 471719.213
2010 493207.833
2011 447828.708
2012 468572.927
2013 458250.322
2014 419820.162