Year Tonnes
1830 61.52354
1831 135.35178
1832 184.57062
1833 246.09415
1850 627.54009
1855 1784.18262
1858 3408.40404
1859 5131.06312
1860 7407.43405
1861 10299.04036
1862 12907.63839
1863 15639.28351
1864 18703.15573
1865 21631.67617
1866 30884.81637
1867 41503.77913
1868 50338.55927
1869 62323.34458
1870 75329.42064
1871 92888.23855
1872 110914.63535
1873 127833.60846
1874 148370.16564
1875 172007.50916
1876 201354.23707
1877 231303.89565
1878 270445.17089
1879 310607.73688
1880 357722.46272
1881 407347.34894
1882 459617.74732
1883 519111.00913
1884 579514.81931
1885 645308.09147
1886 712787.10858
1887 784191.32746
1888 858671.72327
1889 939107.59761
1890 1030199.34883
1891 1130495.02142
1892 1236660.0396
1893 1361097.54873
1894 1487836.03821
1895 1633462.25403
1896 1781709.37259
1897 1953113.95108
1898 2145350.39973
1899 2368360.92238
1900 2620988.8765
1901 2880347.50574
1902 3130846.74543
1903 3375882.69489
1904 3648505.79904
1905 3891856.00355
1906 4169425.60021
1907 4480328.65007
1908 4793138.92963
1909 5123348.0659
1910 5447183.36358
1911 5782929.61832
1912 6163255.82912
1913 6576411.00011
1914 6949292.86274
1915 7291548.30786
1916 7656333.67282
1917 7992055.31815
1918 8125942.8428
1919 8240302.79632
1920 8344585.19421
1921 8457677.76283
1922 8595601.23162
1923 8747958.12256
1924 8929477.17079
1925 9108633.71514
1926 9368213.82912
1927 9690941.7031
1928 10049476.27654
1929 10435598.00467
1930 10960529.14055
1931 11591157.71571
1932 12301668.45336
1933 13095715.8517
1934 14056209.03132
1935 15143428.39571
1936 16390129.0768
1937 17664933.71032
1938 19010428.88967
1939 20372424.68206
1940 22005284.00541
1941 23439816.0498
1942 24427071.96869
1943 25687357.04711
1944 26867673.83007
1945 28117303.0316
1946 29521688.54208
1947 31212810.65647
1948 33012361.85525
1949 35058019.51307
1950 37338278.72819
1951 39809605.44474
1952 42456052.7615
1953 45255890.56466
1954 48313807.30745
1955 51781237.02774
1956 55582948.74256
1957 59743231.94494
1958 64183865.60792
1959 68852653.16137
1960 73713591.03052
1961 78726516.64938
1962 83987812.79349
1963 89630210.34499
1964 95630908.68047
1965 101996515.42799
1966 108718946.39456
1967 115748244.46687
1968 122975033.09802
1969 130501269.09616
1970 138417428.97711
1971 146819477.15636
1972 155661135.62818
1973 164877927.72415
1974 174447520.39975
1975 184508427.74976
1976 194957462.49525
1977 205762743.13854
1978 216939675.1737
1979 228209618.49448
1980 239923810.98264
1981 251416690.99782
1982 263126872.15127
1983 275004926.43209
1984 286989884.01354
1985 299915327.31987
1986 312876072.83264
1987 326382839.75031
1988 340260790.48095
1989 353848054.7965
1990 366587389.39862
1991 378866318.75212
1992 390083671.75212
1993 398704788.75212
1994 404931354.75212
1995 409460099.75212
1996 415154950.75212
1997 420765460.75212
1998 426720668.75212
1999 431392426.75212
2000 436027514.75212
2001 439921868.75212
2002 444879652.75212
2003 450317813.75212
2004 456192347.75212
2005 461784522.75212
2006 467292356.75212
2007 473922292.75212
2008 481582655.75212
2009 488373939.75212
2010 494758186.75212
2011 502414882.75212
2012 512546803.75212
2013 522389031.75212
2014 531996571.75212