Year	thousand metric tons of CO2 equivalent
1990	218.5
1991	216.1
1992	219.5
1993	224.8
1994	226.7
1995	232.2
1996	237.7
1997	242.9
1998	291.8
1999	299.1
2000	305.3
2001	261.6
2002	288.8
2003	323.1
2004	332.1
2005	339.2
2006	330
2007	200.6
2008	212.2
2009	202.3
2010	196.1
2011	239.8
2012	249.2
2013	256.8
2014	269.1
2015	278.4
2016	289
2017	291
2018	293.5
2019	302.6
2020	301.3