Year	thousand metric tons of CO2 equivalent
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	867.870152
2002	1735.740303
2003	2603.610455
2004	3471.480607
2005	4339.350758
2006	4652.85351
2007	4966.356262
2008	5279.859014
2009	5593.361766
2010	5906.864517
2011	5774.933139
2012	5643.00176
2013	5511.070382
2014	5379.139003
2015	5247.207625
2016	5008.28105
2017	4769.354476
2018	4530.427901
2019	4291.501326
2020	4052.574752