Year Tonnes 1950 300694 1951 649059 1952 1008425 1953 1342122 1954 1719823 1955 2156196 1956 2610904 1957 3186623 1958 3773343 1959 4360063 1960 4976119 1961 5713186 1962 6413583 1963 7124981 1964 7847380 1965 8599115 1966 9405855 1967 10282268 1968 11507046 1969 12684153 1970 14073946 1971 15405067 1972 16941540 1973 18452344 1974 20010819 1975 21679304 1976 23457799 1977 25459981 1978 27509834 1979 29442343 1980 31499530 1981 33322029 1982 35085856 1983 37088038 1984 39075552 1985 40982392 1986 42830560 1987 45005091 1988 47509652 1989 50237900 1990 52830469 1991 55529381 1992 58605994 1993 61455253 1994 64792223 1995 68671909 1996 72632269 1997 76790647 1998 81440403 1999 86181834 2000 91212958 2001 96926144 2002 103017031 2003 109786313 2004 117153316 2005 124707336 2006 131714973 2007 140493771 2008 149166226 2009 157039275 2010 165015000 2011 173969814 2012 182953964 2013 192018788 2014 201490649