Year Tonnes 1927 44004 1928 66006 1929 77007 1930 88008 1931 99009 1932 161348 1933 212686 1934 278692 1935 326363 1936 377701 1937 436373 1938 476710 1939 542716 1940 608722 1941 667394 1942 696730 1943 748068 1944 803073 1945 850744 1946 905749 1947 964421 1948 1008425 1949 1067097 1950 1969179 1951 2900597 1952 3975028 1953 5056793 1954 6200897 1955 7576022 1956 9130830 1957 10901991 1958 12720823 1959 14517653 1960 16402491 1961 19035397 1962 21022911 1963 22684062 1964 24825590 1965 26831439 1966 28958299 1967 30832136 1968 33611722 1969 36853350 1970 39838288 1971 43453950 1972 46754250 1973 50318574 1974 53468527 1975 56354456 1976 58914022 1977 61627602 1978 64502530 1979 67146437 1980 70355062 1981 72844955 1982 75386186 1983 77362699 1984 78899172 1985 80046943 1986 81029699 1987 82012455 1988 83024547 1989 84065975 1990 85089068 1991 86112161 1992 87116919 1993 88195017 1994 89258447 1995 90373215 1996 91414643 1997 92540412 1998 93673515 1999 94861623 2000 96211079 2001 97791556 2002 99379367 2003 101297208 2004 103218716 2005 105041215 2006 107021395 2007 109283934 2008 111550140 2009 114080370 2010 116815952 2011 120039245 2012 123159862 2013 127178894 2014 135605660