Year Tonnes
1843 135.679
1844 157.681
1845 209.019
1846 227.354
1847 172.349
1848 311.695
1849 271.358
1850 341.031
1851 311.695
1852 333.697
1853 359.366
1854 458.375
1855 454.708
1856 649.059
1857 663.727
1858 491.378
1859 627.057
1860 542.716
1861 784.738
1862 678.395
1863 755.402
1864 649.059
1865 1015.759
1866 938.752
1867 916.75
1868 1085.432
1869 946.086
1870 1144.104
1871 1188.108
1872 1140.437
1873 1151.438
1874 1243.113
1875 1459.466
1876 1543.807
1877 1525.472
1878 1448.465
1879 1635.482
1880 1862.836
1881 1972.846
1882 2115.859
1883 2431.221
1884 2420.22
1885 2537.564
1886 2431.221
1887 2493.56
1888 2805.255
1889 2995.939
1890 2871.261
1891 3087.614
1892 3171.955
1893 2999.606
1894 3402.976
1895 3527.654
1896 4316.059
1897 4627.754
1898 4807.437
1899 5254.811
1900 5152.135
1901 5364.821
1902 5507.834
1903 5731.521
1904 6182.562
1905 6013.88
1906 6549.262
1907 5837.864
1908 7242.325
1909 8012.395
1910 7356.002
1911 7836.379
1912 9292.178
1913 9534.2
1914 9772.555
1915 10461.951
1916 10223.596
1917 7440.343
1918 8683.456
1919 8243.416
1920 7198.321
1921 6798.618
1922 9658.878
1923 10535.291
1924 12350.456
1925 10729.642
1926 10476.619
1927 13336.879
1928 12570.476
1929 15141.043
1930 13820.923
1931 14334.303
1932 13439.555
1933 13384.55
1934 14656.999
1935 15265.721
1936 15793.769
1937 16310.816
1938 14645.998
1939 16318.15
1940 14836.682
1941 17414.583
1942 16486.832
1943 20641.543
1944 20300.512
1945 14055.611
1946 17660.272
1947 21473.952
1948 17088.22
1949 16897.536
1950 22009.334
1951 21943.328
1952 22922.417
1953 23175.44
1954 25602.994
1955 27091.796
1956 26398.733
1957 24924.599
1958 26816.771
1959 26061.369
1960 29779.707
1961 31734.218
1962 36926.69
1963 40707.367
1964 43189.926
1965 44337.697
1966 50127.89
1967 49075.461
1968 53325.514
1969 59401.733
1970 62100.645
1971 57062.187
1972 59643.755
1973 59266.054
1974 55078.34
1975 55778.737
1976 60135.133
1977 61847.622
1978 61117.889
1979 62999.06
1980 60369.821
1981 51789.041
1982 53695.881
1983 50175.561
1984 50861.29
1985 60072.794
1986 58903.021
1987 58341.97
1988 55107.676
1989 48785.768
1990 50230.566
1991 60270.812
1992 54322.938
1993 57065.854
1994 61000.545
1995 57172.197
1996 72181.228
1997 61557.929
1998 59552.08
1999 55148.013
2000 51330.666
2001 52918.477
2002 52049.398
2003 55998.757
2004 50600.933
2005 47095.281
2006 54986.665
2007 50256.235
2008 46933.933
2009 44510.046
2010 46640.573
2011 40645.028
2012 36427.978
2013 38532.836
2014 33498.045