Year Tonnes 1946 2456890 1947 9211504 1948 9548868 1949 10612298 1950 10997333 1951 11114677 1952 11114677 1953 11114677 1954 12519138 1955 14367306 1956 15408734 1957 17608934 1958 21301603 1959 25104282 1960 32907658 1961 42889232 1962 57179531 1963 74205412 1964 99540715 1965 134960268 1966 170112130 1967 195553776 1968 217995816 1969 244827255 1970 269869198 1971 297008665 1972 324643177 1973 348885714 1974 368214471 1975 385042334 1976 403516680 1977 420736912 1978 441737821 1979 459405427 1980 484080670 1981 509294962 1982 530464553 1983 552074184 1984 580442096 1985 609602080 1986 644922624 1987 676392818 1988 709307810 1989 745193072 1990 796193708 1991 806384301 1992 827469551 1993 860743909 1994 899650779 1995 954472429 1996 1004625988 1997 1059546647 1998 1111291684 1999 1165313928 2000 1218874130 2001 1276515703 2002 1334743996 2003 1394666443 2004 1458200885 2005 1529747722 2006 1603516761 2007 1678752600 2008 1761483787 2009 1848787723 2010 1938412870 2011 2029442478 2012 2131777447 2013 2230122720 2014 2325530726