Year	thousand metric tons of CO2 equivalent
1990	551762.6224999999
1991	558069.1074999998
1992	566530.1550000001
1993	568976.3349999997
1994	578590.7899999999
1995	582433.9899999999
1996	567156.2999999999
1997	572234.12
1998	575835.365
1999	578582.3575
2000	582570.4725
2001	597071.4600000002
2002	619141.8775000003
2003	642531.3400000001
2004	659569.4475
2005	667687.2074999999
2006	663593.7475
2007	666986.1425
2008	665773.7950000002
2009	667845.605
2010	673748.7825000001
2011	669688.5375
2012	673177.9149999999
2013	670953.42
2014	675367.9349999999
2015	677620.4349999998
2016	682940.1350000002
2017	685366.9
2018	681174.7775
2019	690748.2125000001
2020	700530.6700000002