Year	kt of CO2 equivalent
1970	73.9447863
1971	74.5234564
1972	97.7316374
1973	101.8743635
1974	92.7605033
1975	112.4404142
1976	94.5219068
1977	107.453566
1978	96.599509
1979	97.33831
1981	194.489366
1982	193.942095
1983	239.241023
1984	229.525064
1988	300.360395
1989	300.260998
1990	297.396063
1991	307.345957