Year	thousand metric tons of CO2 equivalent
1990	778.100444
1991	778.160614
1992	685.954583
1993	717.612115
1994	652.469192
1995	668.562552
1996	698.113824
1997	666.564989
1998	655.951374
1999	632.448407
2000	584.434221
2001	629.951254
2002	622.590501
2003	674.775345
2004	662.711232
2005	684.925362
2006	673.398184
2007	673.722829
2008	662.541313
2009	667.789652
2010	692.3906
2011	660.506391
2012	624.424189
2013	610.621122
2014	551.516924
2015	611.065215
2016	602.578269
2017	590.810103
2018	574.741938
2019	564.873772
2020	564.505606