Year	thousand metric tons of CO2 equivalent
1969	0
1970	280.991874
1971	281.065096
1972	284.907112
1973	290.049485
1974	282.534682
1975	288.688864
1976	300.859526
1977	311.965276
1978	300.464338
1979	278.539433
1980	256.969633
1981	265.152083
1982	281.200132
1983	300.011862
1984	309.8053603
1985	301.42447
1986	304.0296046
1987	278.7893457
1988	299.24424
1989	310.2682647
1990	317.8694616
1991	319.9836678
1992	252.0960083
1993	257.4429193
1994	261.3819343
1995	236.6857192
1996	232.0825788
1997	239.2020574
1998	232.3142728
1999	230.86962971
2000	232.11819284
2001	230.00667403
2002	230.19390721
2003	221.75440583
2004	205.5864262
2005	206.78924077
2006	200.16255429
2007	197.88887541
2008	193.42952541