Year	thousand metric tons of CO2 equivalent
1990	702.190415
1991	678.920035
1992	568.226305
1993	564.232047
1994	545.932333
1995	574.783594
1996	573.202867
1997	566.0254
1998	556.860295
1999	517.670751
2000	450.391306
2001	426.481417
2002	416.541303
2003	410.621466
2004	407.059711
2005	365.206689
2006	393.4975
2007	378.295
2008	360.4175
2009	347.365
2010	332.24
2011	298.9825
2012	310.6325
2013	304.3075
2014	312.11
2015	320
2016	311.7425
2017	308.27
2018	294.625
2019	284.98
2020	284.0725