Year	thousand metric tons of CO2 equivalent
1990	281.485183
1991	242.122844
1992	202.760505
1993	163.398166
1994	124.035827
1995	84.673488
1996	85.604622
1997	86.535756
1998	87.466889
1999	88.398023
2000	89.329157
2001	83.180575
2002	77.031993
2003	70.88341
2004	64.734828
2005	58.586246
2006	281.776268
2007	504.86629
2008	727.956313
2009	951.146335
2010	1174.236357
2011	1375.842942
2012	1577.249526
2013	1778.85611
2014	1980.262695
2015	2181.869279
2016	2193.960251
2017	2206.251222
2018	2218.442194
2019	2230.633165
2020	2242.724137