Year	thousand metric tons of CO2 equivalent
1990	4817.72363
1991	4635.22334
1992	4986.438651
1993	5111.150561
1994	5190.620672
1995	5264.484582
1996	5248.900959
1997	6094.227736
1998	6576.295313
1999	6407.53169
2000	6506.392067
2001	6570.592697
2002	7203.168127
2003	7987.644957
2004	8630.119587
2005	8967.930417
2006	8913.187899
2007	9284.89658
2008	9852.656262
2009	8458.817144
2010	9908.473625
2011	10113.83201
2012	10371.6304
2013	9789.922385
2014	10261.38197
2015	9967.276559
2016	9994.365508
2017	9698.823658
2018	9055.144208
2019	9257.203557
2020	9265.095907