Year	thousand metric tons of CO2 equivalent
1990	7594.101897
1991	7432.927235
1992	7515.373484
1993	7349.710637
1994	6995.713341
1995	7005.562529
1996	6994.533062
1997	7497.28097
1998	7690.506703
1999	8532.553346
2000	8854.174738
2001	8252.761036
2002	7840.39421
2003	7671.207179
2004	7578.268679
2005	8230.985923
2006	8538.098965
2007	10494.40299
2008	10982.74975
2009	10911.08253
2010	10971.34702
2011	11359.62012
2012	11659.89418
2013	10300.95837
2014	11919.38142
2015	7208.776965
2016	10245.5529
2017	10240.78733
2018	9989.321765
2019	9917.156199
2020	9927.390633