Year Tonnes 1896 3667 1897 55005 1898 168682 1899 249356 1900 359366 1901 535382 1902 792072 1903 1008425 1904 1228445 1905 1481468 1906 1756493 1907 2115859 1908 2526563 1909 3014274 1910 3630330 1911 4308725 1912 5049459 1913 5903870 1914 6824287 1915 7840046 1916 9226172 1917 11026669 1918 13171864 1919 16083462 1920 19130739 1921 21888323 1922 25463648 1923 29299330 1924 33296360 1925 37788435 1926 42544534 1927 47476649 1928 51682698 1929 55877746 1930 60124132 1931 63901142 1932 67498469 1933 71697184 1934 75873897 1935 80241294 1936 84979058 1937 90233869 1938 96137739 1939 103325059 1940 111099099 1941 119041821 1942 125466405 1943 131898323 1944 136533411 1945 138722610 1946 141586537 1947 145209533 1948 149752946 1949 154230353 1950 158018364 1951 162932144 1952 169331059 1953 175810648 1954 182304905 1955 189510560 1956 197203926 1957 205396004 1958 214977875 1959 225982542 1960 237870956 1961 250415763 1962 264599719 1963 279729761 1964 296660300 1965 314529591 1966 334019696 1967 356021696 1968 380198227 1969 406527287 1970 435302236 1971 466823768 1972 502749367 1973 543053364 1974 582422276 1975 625942232 1976 682128006 1977 743355905 1978 814495705 1979 890380603 1980 974032207 1981 1049216708 1982 1124731239 1983 1208012476 1984 1293020870 1985 1377900919 1986 1472392175 1987 1570744782 1988 1684025746 1989 1807354290 1990 1931042200 1991 2065929128 1992 2211380683 1993 2368555637 1994 2532617217 1995 2706964732 1996 2889471322 1997 3085960183 1998 3285833685 1999 3492960513 2000 3712001424 2001 3940158497 2002 4178000117 2003 4424565530 2004 4685182887 2005 4944571799 2006 5211679746 2007 5489594342 2008 5751187121 2009 5999703378 2010 6269700921 2011 6538880723 2012 6797011854 2013 7057449528 2014 7321521199