Year	thousand metric tons of CO2 equivalent
1990	9058.799999999997
1991	9270.6
1992	9591.699999999999
1993	9789.199999999999
1994	10043
1995	10474.7
1996	10774.900000000001
1997	11224.599999999999
1998	11430.3
1999	11703.8
2000	11783.98
2001	12205.380000000001
2002	12579.38
2003	12998.980000000001
2004	13463.280000000004
2005	13689.68
2006	13938.98
2007	14117.98
2008	14719.780000000002
2009	14954.180000000002
2010	15518.080000000002
2011	15995.68
2012	16358.28
2013	17239.18
2014	17624.879999999997
2015	17719.18
2016	18180.88
2017	18426.579999999998
2018	18713.78
2019	19213.780000000002
2020	18735.479999999996