Year	thousand metric tons of CO2 equivalent
1990	605759.5399999999
1991	612386.1574999999
1992	620405.24
1993	620762.86
1994	632123.2824999999
1995	661110.7375000002
1996	685154.0450000002
1997	647426.1525000002
1998	659689.5750000002
1999	680497.5075
2000	678289.5475
2001	666300.215
2002	656400.0425
2003	651575.2850000001
2004	666520.42
2005	674361.4175000001
2006	680307.6300000001
2007	678403.1525
2008	686641.77
2009	690330.0850000001
2010	689432.4849999999
2011	684731.435
2012	685435.435
2013	680546.735
2014	680153.0499999999
2015	683222.9075
2016	685631.3325
2017	688537.96
2018	689661.7099999998
2019	672772.6575
2020	680093.5925000001