Year	thousand metric tons of CO2 equivalent
1990	2705.2738
1991	2786.5384
1992	2735.0142
1993	2767.526
1994	2592.9576
1995	2704.8566
1996	2938.3992
1997	3242.389
1998	3532.5218
1999	3803.225
2000	3273.8578
2001	2861.0682
2002	3334.4114
2003	3463.505
2004	3427.2086
2005	3575.3444
2006	3402.8918
2007	3324.4582
2008	3597.9626
2009	3863.868
2010	4273.8564
2011	4369.0078
2012	4398.5098
2013	4440.1106
2014	4744.2494
2015	4702.3804
2016	4680.2688
2017	4892.1766
2018	4289.9782
2019	4258.4498
2020	4465.977