Year	thousand metric tons of CO2 equivalent
1990	269.8688
1991	283.4874
1992	281.4908
1993	282.3252
1994	283.3682
1995	284.7092
1996	300.5628
1997	285.2158
1998	307.5062
1999	283.249
2000	307.1486
2001	269.3026
2002	264.0578
2003	298.1788
2004	320.35
2005	332.3594
2006	354.3518
2007	350.1202
2008	348.6898
2009	372.7384
2010	375.8078
2011	345.4714
2012	307.5062
2013	323.2406
2014	335.6672
2015	337.9022
2016	336.7996
2017	340.6438
2018	348.809
2019	341.508
2020	359.1794