Year Tonnes
1860 202.83259
1861 666.84686
1862 1133.63967
1863 1600.43247
1864 2067.22527
1865 2534.01808
1866 3000.81088
1867 3464.82516
1868 3931.61796
1869 4398.41076
1870 4865.20357
1871 5331.99637
1872 5796.01065
1873 6262.80345
1874 6729.59626
1875 7196.38906
1876 12439.47252
1877 13070.19851
1878 13700.9245
1879 14723.42302
1880 15598.65953
1881 16473.89604
1882 16846.21887
1883 17993.75118
1884 18585.57777
1885 19513.60632
1886 20513.87661
1887 21547.48925
1888 23095.12968
1889 24451.05163
1890 26148.7326
1891 27110.1035
1892 27521.32573
1893 28132.60202
1894 28838.34828
1895 29930.31002
1896 30666.6201
1897 32455.99251
1898 33181.18847
1899 34042.53234
1900 33795.24329
1901 35312.31991
1902 35784.66977
1903 36457.07369
1904 36812.72535
1905 37896.3515
1906 39574.58277
1907 41591.79453
1908 42358.66842
1909 42100.26526
1910 41661.25774
1911 42189.17818
1912 44889.90797
1913 46954.35472
1914 42806.01153
1915 42711.54155
1916 45459.50633
1917 42747.66242
1918 36445.95957
1919 34431.52634
1920 34148.11643
1921 32794.973
1922 29269.02021
1923 30936.13737
1924 37971.37177
1925 35734.65625
1926 36232.01287
1927 38882.72915
1928 40938.84031
1929 45795.70829
1930 40372.02048
1931 37774.09624
1932 32922.78532
1933 30110.91438
1934 30077.57203
1935 30963.92266
1936 33642.42422
1937 40749.90037
1938 46693.17303
1939 51299.97344
1940 57818.40152
1941 58196.28141
1942 62766.96095
1943 69299.28167
1944 66073.40998
1945 35065.03086
1946 43642.34863
1947 49527.2722
1948 53528.35337
1949 56270.76109
1950 57935.09972
1951 61736.12684
1952 66009.50382
1953 68415.70958
1954 73064.18792
1955 75842.71651
1956 81383.10253
1957 85000.74676
1958 92875.0968
1959 92961.23118
1960 99146.23583
1961 107609.63393
1962 114675.43215
1963 120629.81893
1964 125542.25748
1965 122327.4999
1966 121638.42481
1967 121385.5787
1968 126998.20646
1969 134822.54299
1970 154575.10276
1971 162174.37847
1972 163688.67655
1973 164383.3087
1974 166317.1646
1975 174047.03115
1976 180851.64768
1977 186294.7852
1978 188025.80851
1979 183160.60494
1980 185344.52842
1981 183366.21606
1982 181601.8504
1983 181890.81738
1984 188050.81527
1985 185516.79719
1986 186828.26269
1987 185366.75665
1988 182424.29487
1989 176439.34427
1990 164997.36352
1991 152163.33994
1992 138176.227
1993 132631.723
1994 125734.096
1995 123830.923
1996 125378.397
1997 127413.582
1998 122543.806
1999 111975.512
2000 123849.258
2001 123720.913
2002 119749.552
2003 122059.762
2004 116775.615
2005 120108.918
2006 122107.433
2007 123302.875
2008 116658.271
2009 107659.453
2010 111579.476
2011 106907.718
2012 101029.517
2013 98675.303
2014 96475.103