Year	thousand metric tons of CO2 equivalent
1991	0
1992	0
1993	0
1994	0
1995	13.5888
1996	13.5888
1997	13.5888
1998	13.5888
1999	13.5888
2000	13.5888
2001	13.5888
2002	13.5888
2003	13.6186
2004	13.6186
2005	13.6186
2006	13.6186
2007	13.7974
2008	13.7974
2009	14.5126
2010	14.4828
2011	15.4066
2012	15.4066
2013	15.8536
2014	15.8834
2015	16.1516
2016	16.4198
2017	16.3602
2018	16.5688
2019	16.9264
2020	17.284