Year	thousand metric tons of CO2 equivalent
1990	14.006
1991	14.1252
1992	14.2146
1993	14.3338
1994	14.2444
1995	14.2146
1996	14.2444
1997	14.2444
1998	14.1848
1999	14.2146
2000	14.304
2001	14.3636
2002	14.4232
2003	14.4828
2004	14.9298
2005	15.0192
2006	15.3768
2007	15.7642
2008	15.8536
2009	15.8834
2010	15.8238
2011	15.794
2012	16.0324
2013	16.2112
2014	16.2708
2015	16.3006
2016	16.3304
2017	16.39
2018	16.4198
2019	16.4794
2020	16.539