Year Tonnes per Person 1970 64.99347 1971 76.4651 1972 74.37478 1973 59.70266 1974 103.89833 1975 109.95057 1976 98.17165 1977 70.19525 1978 68.21057 1979 71.64182 1980 69.62658 1981 70.22982 1982 48.7633 1983 52.14867