Year	thousand metric tons of CO2 equivalent
1990	13450.2896
1991	14227.5034
1992	14517.7554
1993	14886.6496
1994	15521.8068
1995	16766.225
1996	17258.5806
1997	16722.4786
1998	16722.4488
1999	17934.9214
2000	18064.611
2001	18466.3448
2002	19003.2216
2003	18493.0456
2004	18576.5154
2005	19302.2646
2006	20295.8562
2007	20350.0326
2008	22395.3258
2009	21864.7666
2010	22364.5722
2011	23345.767
2012	22713.9474
2013	22866.8214
2014	23746.13
2015	24375.4762
2016	23402.536
2017	24230.9462
2018	24959.735
2019	25021.57
2020	25643.9728