Year	thousand metric tons of CO2 equivalent
1990	6931.3
1991	10764
1992	10353.6
1993	8878.6
1994	7299
1995	6829.2
1996	7284
1997	7607.1
1998	7887.3
1999	7709.1
2000	7801.7
2001	7443.6
2002	7353.9
2003	7277.7
2004	6967.6
2005	6674.3
2006	6463
2007	6089.9
2008	6323.5
2009	5950.6
2010	5357
2011	5070.3
2012	4988.4
2013	5415.2
2014	5916
2015	6990
2016	7054.7
2017	6378.9
2018	6368.7
2019	6658
2020	6730.7