Year	thousand metric tons of CO2 equivalent
1990	15033.8318
1991	15065.7774
1992	15107.9742
1993	15051.98
1994	14999.2638
1995	14985.4962
1996	13476.8116
1997	13235.3124
1998	14645.5378
1999	13515.5814
2000	13921.3978
2001	14251.9692
2002	15438.188
2003	17728.3776
2004	17825.7938
2005	17521.9828
2006	16132.1108
2007	17271.335
2008	16319.8806
2009	16381.1494
2010	17249.134
2011	17813.9334
2012	16864.9226
2013	17409.7858
2014	16843.3176
2015	17541.1442
2016	17580.9868
2017	17973.3634
2018	16054.1242
2019	18059.098
2020	17051.5004