Year Tonnes
1892 212.686
1893 663.727
1894 304.361
1895 179.683
1896 363.033
1897 524.381
1898 656.393
1899 733.4
1900 513.38
1901 502.379
1902 399.703
1903 557.384
1904 803.073
1905 792.072
1906 836.076
1907 850.744
1908 920.417
1909 1019.426
1910 1323.787
1911 1158.772
1912 1140.437
1913 1353.123
1914 1646.483
1915 1708.822
1916 1818.832
1917 1738.158
1918 1690.487
1919 1767.494
1920 1859.169
1921 2445.889
1922 2629.239
1923 2805.255
1924 3281.965
1925 3619.329
1926 3424.978
1927 3960.36
1928 5221.808
1929 5236.476
1930 5192.472
1931 4583.75
1932 4547.08
1933 4224.384
1934 4228.051
1935 4712.095
1936 5804.861
1937 6127.557
1938 6226.566
1939 6945.298
1940 6637.27
1941 6182.562
1942 3300.3
1943 2709.913
1944 1426.463
1945 612.389
1955 3527.654
1956 2911.598
1957 2878.595
1958 5020.123
1959 6611.601
1960 7491.681
1961 7986.726
1962 9347.183
1963 9119.829
1964 11800.406
1965 13164.53
1966 19200.412
1967 22984.756
1968 23622.814
1969 27080.795
1970 28199.23
1971 24528.563
1972 23058.096
1973 25096.948
1974 19083.068
1975 21800.315
1976 13923.599
1977 15276.722
1978 15419.735
1979 16281.48
1980 16820.529
1981 17726.278
1982 18382.671
1983 19317.756
1984 17550.262
1985 21165.924
1986 23091.099
1987 25969.694
1988 23182.774
1989 17509.925
1990 21407.946
1991 21451.95
1992 21477.619
1993 23006.758
1994 26230.051
1995 29090.311
1996 34667.818
1997 45100.433
1998 47513.319
1999 47693.002
2000 53644.543
2001 61139.891
2002 70806.103
2003 78767.16
2004 90549.231
2005 98143.588
2006 102745.673
2007 104872.533
2008 117993.059
2009 128634.693
2010 142737.975
2011 152169.499
2012 142220.928
2013 147230.05
2014 166910.839