Year	thousand metric tons of CO2 equivalent
1990	25743.07987
1991	25240.27196
1992	22125.7075
1993	22119.0475
1994	21815.185
1995	18650.46
1996	15915.935
1997	13395.835
1998	11200.3325
1999	9875.8
2000	9857.77
2001	10391.1575
2002	14726.955
2003	12160.7525
2004	13493.855
2005	14115.4325
2006	14943.045
2007	13930.8125
2008	14602.6525
2009	13965.5875
2010	15882.9525
2011	13984.5475
2012	13826.69
2013	12870.12
2014	14253.4925
2015	15157.28
2016	14439.1325
2017	17781.2275
2018	15970.985
2019	17591.3475
2020	17494.9