Year Tonnes
1830 0.47946
1831 0.57535
1832 0.38357
1833 0.47946
1850 2.97263
1855 9.0138
1858 12.65767
1859 13.4248
1860 17.73992
1861 22.53449
1862 20.32899
1863 21.2879
1864 23.87697
1865 22.82216
1866 72.11037
1867 82.75432
1868 68.85006
1869 93.39827
1870 101.35726
1871 136.83709
1872 140.48097
1873 131.85074
1874 160.04282
1875 184.20746
1876 228.70109
1877 233.39977
1878 305.03068
1879 312.98967
1880 367.16834
1881 386.73019
1882 407.34685
1883 463.63513
1884 470.7311
1885 512.73155
1886 525.86868
1887 556.45805
1888 580.43091
1889 626.84237
1890 709.88436
1891 781.61116
1892 827.35138
1893 969.75017
1894 987.68187
1895 1134.87524
1896 1155.30012
1897 1335.76782
1898 1498.11203
1899 1737.93653
1900 1968.74724
1901 2021.19986
1902 1952.15802
1903 1909.58222
1904 2124.57083
1905 1896.44509
1906 2163.11919
1907 2422.88912
1908 2437.75229
1909 2573.34279
1910 2523.67102
1911 2616.49394
1912 2963.90864
1913 3219.74702
1914 2905.89432
1915 2667.22052
1916 2842.79775
1917 2616.30216
1918 1043.3948
1919 891.21508
1920 812.67999
1921 881.33826
1922 1074.8472
1923 1187.32786
1924 1414.59058
1925 1396.17942
1926 2022.9259
1927 2515.04079
1928 2794.0849
1929 3009.07351
1930 4090.82489
1931 4914.5324
1932 5537.05965
1933 6188.06667
1934 7485.19023
1935 8472.77621
1936 9715.62522
1937 9934.64127
1938 10485.53762
1939 10614.12805
1940 12724.9864
1941 11179.40811
1942 7693.75412
1943 9821.48937
1944 9198.29088
1945 9738.44738
1946 10944.47407
1947 13179.03239
1948 14024.0278
1949 15941.95257
1950 17770.21884
1951 19259.22118
1952 20623.94821
1953 21819.33095
1954 23830.5581
1955 27021.92125
1956 29627.00411
1957 32421.37668
1958 34606.16734
1959 36384.18649
1960 37881.62728
1961 39066.0784
1962 41001.6472
1963 43971.597
1964 46763.85996
1965 49607.61662
1966 52388.37261
1967 54779.80933
1968 56318.86701
1969 58652.48119
1970 61691.18516
1971 65477.7465
1972 68903.66012
1973 71827.10257
1974 74576.50206
1975 78405.35153
1976 81430.05534
1977 84206.30443
1978 87102.60961
1979 87827.45303
1980 91289.51773
1981 89564.81421
1982 91258.25712
1983 92566.50409
1984 93399.60895
1985 100728.87969
1986 101003.99225
1987 105259.17507
1988 108151.83637
1989 105886.4969
1990 99278.5216
1991 95690.55144
1992 87417.613
1993 76768.645
1994 65056.247
1995 60773.191
1996 60164.469
1997 59555.747
1998 58099.948
1999 56112.434
2000 53787.556
2001 52760.796
2002 52405.097
2003 53530.866
2004 58158.62
2005 59167.045
2006 62071.309
2007 60523.835
2008 63105.403
2009 61220.565
2010 63043.064
2011 64062.49
2012 63222.747
2013 63769.13
2014 63497.772