Year	thousand metric tons of CO2 equivalent
1990	242117.9125
1991	250251.74
1992	254448.2025
1993	254573.015
1994	259446.1025
1995	264080.965
1996	251714.6675
1997	256384.1375
1998	262046.9725
1999	263868.9025
2000	268594.26
2001	279996.4
2002	295294.9725
2003	307816.29
2004	323267.8725
2005	328429.4925
2006	322108.2175
2007	321149.665
2008	318408.695
2009	320998.0875
2010	335812.6175
2011	333934.505
2012	334263.7625
2013	330236.6325
2014	333334.96
2015	337886.8475
2016	339754.2275
2017	335974.6975
2018	330388.6475
2019	335498.6525
2020	340438.6175