Year	thousand metric tons of CO2 equivalent
1990	234.48713
1991	236.414435
1992	243.287939
1993	239.565844
1994	255.018348
1995	264.528853
1996	272.930082
1997	269.072312
1998	275.086941
1999	290.901771
2000	303.774
2001	236.5254
2002	277.009
2003	279.0818
2004	271.2186
2005	271.17428
2006	262.627242
2007	268.734732
2008	260.082022
2009	254.529713
2010	246.794203
2011	255.448693
2012	264.664783
2013	239.085073
2014	250.755363
2015	221.971253
2016	239.120375
2017	239.038498
2018	233.237621
2019	238.402544
2020	221.869467