Year	thousand metric tons of CO2 equivalent
1990	5461.3
1991	5640.6
1992	5779.5
1993	5934.4
1994	6013.2
1995	6329.7
1996	6443.9
1997	6570.5
1998	6763
1999	6808.6
2000	6871
2001	6732
2002	7030.3
2003	7829.1
2004	7544.4
2005	8306.7
2006	8319.5
2007	8729.1
2008	9006.2
2009	8323
2010	8606.5
2011	7520.9
2012	7996.2
2013	7698.7
2014	6997.1
2015	7436.6
2016	7282.7
2017	7611.5
2018	7414.5
2019	7395.1
2020	7114.7