Year	thousand metric tons of CO2 equivalent
1990	294.45879
1991	301.058181
1992	326.157572
1993	328.756963
1994	332.256355
1995	336.055746
1996	338.184954
1997	342.514162
1998	347.44337
1999	350.572578
2000	109.001787
2001	115.998344
2002	122.594901
2003	133.491458
2004	144.288015
2005	154.784573
2006	164.931941
2007	126.97931
2008	135.826678
2009	148.174047
2010	147.621415
2011	128.646689
2012	135.171963
2013	122.597237
2014	99.12251
2015	93.147784
2016	94.039601
2017	101.331417
2018	94.923233
2019	91.01505
2020	80.406866