Year	thousand metric tons of CO2 equivalent
1990	8033.683696
1991	8101.436722
1992	8173.320948
1993	8274.550974
1994	8349.584
1995	8424.283426
1996	8291.480616
1997	7481.053605
1998	8579.180795
1999	8142.966384
2000	7553.969974
2001	8522.93928
2002	9134.850786
2003	9288.773692
2004	8925.905198
2005	9572.489104
2006	8960.072159
2007	9371.060013
2008	10108.37407
2009	8935.374723
2010	9986.234978
2011	9306.513631
2012	9587.156684
2013	9765.961138
2014	9989.188991
2015	9422.428645
2016	8779.762898
2017	8679.201151
2018	9736.213804
2019	9714.093258
2020	9599.741911