Year	kt of CO2 equivalent
1970	6.12116
1971	6.165
1972	6.23502
1973	6.32936
1974	6.45378
1975	6.57608
1976	6.67545
1977	6.83219
1978	6.8685
1979	6.89215
1980	6.96729
1981	7.09575
1982	7.35214
1983	7.62757
1984	7.91671
1985	8.17822
1986	8.43484
1987	8.73258
1988	9.01238
1989	9.35252
1990	8.84112
1991	9.11689
1992	9.35997
1993	9.58111
1994	9.77834
1995	9.95821
1996	10.1199
1997	10.2618
1998	10.3686
1999	10.4723
2000	10.5692
2001	10.6934
2002	10.8147
2003	10.9261
2004	11.0623
2005	11.216
2006	11.3831
2007	11.663
2008	12.0323
2009	12.4112
2010	12.858
2011	12.98658
2012	13.11516