Year	thousand metric tons of CO2 equivalent
1990	9.82
1991	9.9025
1992	9.9925
1993	10.0825
1994	10.1275
1995	10.2275
1996	10.2625
1997	10.3575
1998	10.405
1999	10.505
2000	10.5625
2001	10.65
2002	10.6475
2003	10.6875
2004	10.725
2005	10.745
2006	10.795
2007	10.8675
2008	10.84
2009	10.8375
2010	11.08
2011	11.0925
2012	11.2525
2013	11.3625
2014	11.3575
2015	11.3925
2016	11.4375
2017	11.545
2018	11.615
2019	11.6825
2020	11.7375