Year	thousand metric tons of CO2 equivalent
1969	0
1970	24.595989
1971	24.595989
1972	25.724172
1973	25.8699309
1974	28.419126
1975	27.6795559
1976	31.8235181
1977	36.074297
1978	38.677026
1979	33.763092
1980	33.7830715
1981	38.2417736
1982	49.788387
1983	68.281623
1984	80.021044
1985	87.6293275
1986	103.5431124
1987	103.8168424
1988	134.581044
1989	140.9411373
1990	147.77932872
1991	160.7713754
1992	177.86374186
1993	191.7357688
1994	163.6130152
1995	163.9991977
1996	145.2757278
1997	126.7503138
1998	168.9012804
1999	180.740757
2000	168.916458
2001	173.5544052
2002	165.2070848
2003	183.19577472
2004	169.6228178
2005	169.84212296
2006	171.79538088
2007	181.56006282
2008	191.15222325