Year	thousand metric tons of CO2 equivalent
1990	192.3292
1991	193.7894
1992	194.0874
1993	198.3488
1994	204.9942
1995	219.7452
1996	229.4004
1997	231.6652
1998	235.7776
1999	244.8964
2000	244.8666
2001	245.3136
2002	245.3732
2003	245.4626
2004	247.191
2005	247.5188
2006	244.7474
2007	245.1646
2008	245.1646
2009	245.4626
2010	245.4328
2011	245.2838
2012	247.042
2013	247.042
2014	248.0254
2015	248.83
2016	249.9326
2017	247.6678
2018	247.638
2019	247.787
2020	247.9658