Year	thousand metric tons of CO2 equivalent
1990	275.688084
1991	280.387532
1992	283.08698
1993	286.186428
1994	289.085876
1995	291.985324
1996	295.311811
1997	300.138297
1998	302.864783
1999	303.29127
2000	306.417756
2001	305.714634
2002	310.811512
2003	294.80839
2004	298.605269
2005	302.002147
2006	323.154419
2007	327.406692
2008	327.558965
2009	327.311238
2010	331.563511
2011	333.495748
2012	338.527984
2013	339.660221
2014	343.392458
2015	345.124695
2016	349.617274
2017	353.809853
2018	355.502432
2019	359.495011
2020	359.78759