Year	thousand metric tons of CO2 equivalent
1990	118.4
1991	107.2
1992	107.6
1993	105.9
1994	110.30000000000001
1995	115.39999999999999
1996	123.1
1997	129.79999999999998
1998	133.3
1999	136.5
2000	147.2
2001	146.2
2002	155.10000000000002
2003	157.6
2004	163.2
2005	165.3
2006	176.9
2007	180.4
2008	176.9
2009	173.5
2010	175
2011	178
2012	177.29999999999998
2013	173.10000000000002
2014	184.7
2015	184.2
2016	189.6
2017	184.5
2018	176.2
2019	191.20000000000002
2020	154.1