Year	thousand metric tons of CO2 equivalent
1990	37
1991	38
1992	40.3
1993	42.5
1994	44.8
1995	48.6
1996	51.5
1997	56.8
1998	59.8
1999	58.8
2000	60.6
2001	65
2002	76
2003	83.5
2004	92.1
2005	110.6
2006	129.5
2007	210.68
2008	247.18
2009	249.08
2010	261.38
2011	276.88
2012	283.08
2013	292.88
2014	338.68
2015	339.18
2016	355.58
2017	360.48
2018	332.88
2019	339.48
2020	331.28