Year Tonnes
1858 436.373
1859 704.064
1860 711.398
1861 550.05
1862 608.722
1863 674.728
1864 638.058
1865 627.057
1866 707.731
1878 1954.511
1879 1855.502
1880 2075.522
1881 2024.184
1882 2405.552
1883 2684.244
1884 2988.605
1885 2698.912
1886 3028.942
1887 3355.305
1888 3725.672
1889 4382.065
1890 4833.106
1891 5203.473
1892 5716.853
1893 6017.547
1894 6138.558
1895 7689.699
1896 8320.423
1897 9006.152
1898 9977.907
1899 10997.333
1900 13061.854
1901 14407.643
1902 15889.111
1903 16178.804
1904 18081.977
1905 18489.014
1906 21360.275
1907 23835.5
1908 27271.479
1909 26340.061
1910 25716.671
1911 27135.8
1912 31242.84
1913 34466.133
1914 34744.825
1915 36306.967
1916 36710.337
1917 38389.823
1918 43193.593
1919 47161.287
1920 38191.805
1921 41077.734
1922 40421.341
1923 41609.449
1924 44546.716
1925 43952.662
1926 43827.984
1927 45969.512
1928 44235.021
1929 46031.851
1930 46794.587
1931 42859.896
1932 39849.289
1933 39119.556
1934 43681.304
1935 45639.482
1936 44854.744
1937 49684.183
1938 55621.056
1939 54447.616
1940 57744.249
1941 59005.697
1942 58947.025
1943 51338
1944 52504.106
1945 58242.961
1946 57546.231
1947 58649.998
1948 58668.333
1949 61931.963
1950 66658.726
1951 69779.343
1952 73552.686
1953 74938.812
1954 78803.83
1955 85510.773
1956 88528.714
1957 99317.028
1958 103809.103
1959 109826.65
1960 120581.961
1961 130402.187
1962 143467.708
1963 154083.673
1964 150647.694
1965 165972.087
1966 171765.947
1967 172238.99
1968 187336.029
1969 190724.337
1970 195143.072
1971 205869.047
1972 217849.136
1973 224343.393
1974 231992.755
1975 252201.592
1976 263785.645
1977 279051.366
1978 283096.067
1979 296891.321
1980 314016.211
1981 338838.134
1982 349637.449
1983 378669.088
1984 388118.947
1985 426673.785
1986 457571.927
1987 488481.07
1988 527563.956
1989 579008.299
1990 619154.615
1991 658189.83
1992 699087.881
1993 723697.118
1994 764730.848
1995 811562.105
1996 882324.204
1997 917685.085
1998 936221.77
1999 995766.516
2000 1031853.463
2001 1041152.975
2002 1054258.833
2003 1099597.621
2004 1154320.262
2005 1222563.132
2006 1303717.509
2007 1407607.286
2008 1568379.567
2009 1738645.711
2010 1719690.988
2011 1841776.419
2012 2018503.817
2013 2034752.294
2014 2238377.137