Year	thousand metric tons of CO2 equivalent
1990	747.1
1991	788.3
1992	782.4
1993	800.5
1994	784.1
1995	798.8
1996	868.2
1997	824.5
1998	813.3
1999	789.8
2000	779.1
2001	804.4
2002	804.1
2003	795.4
2004	843.2
2005	823.7
2006	827.6
2007	819.5
2008	871.8
2009	858.8
2010	918.5
2011	872.8
2012	860.1
2013	865.9
2014	789.1
2015	748.3
2016	753
2017	750.3
2018	742.9
2019	750.7
2020	716.7