Year Tonnes
1785 3.667
1786 3.667
1787 3.667
1788 3.667
1789 3.667
1790 3.667
1791 3.667
1792 3.667
1793 3.667
1794 3.667
1795 3.667
1796 3.667
1797 3.667
1798 3.667
1799 3.667
1800 3.667
1801 3.667
1802 3.667
1803 3.667
1804 3.667
1805 3.667
1806 3.667
1807 3.667
1808 3.667
1809 3.667
1810 3.667
1811 3.667
1812 3.667
1813 3.667
1814 3.667
1815 3.667
1816 3.667
1817 3.667
1818 3.667
1819 3.667
1820 3.667
1821 3.667
1822 3.667
1823 3.667
1824 3.667
1825 3.667
1826 3.667
1827 3.667
1828 3.667
1829 3.667
1830 3.667
1831 3.667
1832 3.667
1833 3.667
1834 3.667
1835 3.667
1836 3.667
1837 3.667
1838 3.667
1839 3.667
1840 3.667
1841 3.667
1842 3.667
1843 3.667
1844 3.667
1845 3.667
1846 25.669
1847 33.003
1848 40.337
1849 47.671
1850 58.672
1851 69.673
1852 84.341
1853 102.676
1854 124.678
1855 150.347
1856 179.683
1857 216.353
1858 264.024
1859 315.362
1860 381.368
1861 458.375
1862 561.051
1863 704.064
1864 843.41
1865 1019.426
1866 1243.113
1867 1595.145
1868 946.086
1869 685.729
1870 1224.778
1871 1782.162
1872 1848.168
1873 1609.813
1874 1624.481
1875 1877.504
1876 1859.169
1877 2024.184
1878 1936.176
1879 2185.532
1880 5236.476
1881 5595.842
1882 6622.602
1883 7436.676
1884 8606.449
1885 8250.75
1886 8804.467
1887 10157.59
1888 13322.211
1889 11301.694
1890 12423.796
1891 13952.935
1892 13901.597
1893 14866.018
1894 14191.29
1895 13542.231
1896 14660.666
1897 14811.013
1898 15720.429
1899 19185.744
1900 20645.21
1901 23864.836
1902 25669
1903 27982.877
1904 33124.011
1905 35415.886
1906 37418.068
1907 47029.275
1908 47447.313
1909 45423.129
1910 51664.363
1911 60318.483
1912 67326.12
1913 79346.546
1914 68437.221
1915 61165.56
1916 76519.289
1917 85312.755
1918 89592.144
1919 76152.589
1920 84447.343
1921 80549.322
1922 69265.963
1923 93057.459
1924 77447.04
1925 75309.179
1926 84825.044
1927 92074.703
1928 93860.532
1929 99119.01
1930 94432.584
1931 75917.901
1932 70267.054
1933 69540.988
1934 79980.937
1935 78862.502
1936 86236.839
1937 93563.505
1938 85617.116
1939 95085.31
1940 108715.549
1941 120255.598
1942 131190.592
1943 138179.894
1944 140526.774
1945 130633.208
1946 138542.927
1947 143673.06
1948 158645.421
1949 145150.861
1950 154270.69
1951 162822.134
1952 159551.17
1953 160753.946
1954 163115.494
1955 169628.086
1956 189976.269
1957 182983.3
1958 182326.907
1959 184655.452
1960 192895.201
1961 194182.318
1962 207185.5
1963 211109.19
1964 237801.283
1965 252153.921
1966 259319.239
1967 281896.958
1968 303539.592
1969 307400.943
1970 341485.708
1971 352607.719
1972 381136.979
1973 381621.023
1974 389970.782
1975 397143.434
1976 399317.965
1977 408151.768
1978 415896.472
1979 442067.851
1980 443233.957
1981 430003.421
1982 414811.04
1983 408687.15
1984 425595.687
1985 422079.034
1986 405053.153
1987 431349.21
1988 456053.789
1989 463274.112
1990 435181.225
1991 426780.128
1992 440978.752
1993 445580.837
1994 456849.528
1995 467637.842
1996 479419.913
1997 495294.356
1998 506533.711
1999 515389.516
2000 534380.909
2001 527926.989
2002 519335.208
2003 553100.944
2004 552198.862
2005 557417.003
2006 543819.767
2007 554355.058
2008 561028.998
2009 536764.459
2010 534670.602
2011 537112.824
2012 517457.704
2013 517160.677
2014 537193.498