Year	thousand metric tons of CO2 equivalent
1990	14493.31
1991	14618.6425
1992	14421.0825
1993	14153.7525
1994	13915.865
1995	13871.96
1996	13577.97
1997	13145.935
1998	12791.555
1999	12802.9225
2000	12377.0725
2001	12315.045
2002	11725.37
2003	11477.225
2004	11428.4925
2005	11514.9375
2006	11356.6925
2007	11553.8475
2008	11992.755
2009	12106.3425
2010	12165.1575
2011	12010.535
2012	11944.7175
2013	12244.015
2014	12562.345
2015	13065.0225
2016	13152.475
2017	12436.0525
2018	11574.6725
2019	11702.9575
2020	11523.6825