Year	kt of CO2 equivalent
1970	40.6673
1971	41.5339
1972	41.8183
1973	42.0689
1974	42.2605
1975	43.5606
1976	44.6056
1977	45.7915
1978	47.2106
1979	48.3516
1980	50.9641
1981	56.5553
1982	56.854
1983	56.9163
1984	59.8358
1985	64.4886
1986	65.9715
1987	65.7464
1988	67.779
1989	69.8286
1990	70.6834
1991	72.5529
1992	74.8705
1993	76.8118
1994	77.4795
1995	77.7781
1996	78.1545
1997	77.6425
1998	79.776
1999	81.6546
2000	84.1631
2001	84.2617
2002	83.9911
2003	85.8599
2004	85.8839
2005	88.1548
2006	89.0267
2007	91.0906
2008	93.1814
2009	95.172
2010	97.1142
2011	98.085342
2012	99.056484