Year	thousand metric tons of CO2 equivalent
1990	370580.4234090001
1991	358952.84263800003
1992	323071.2475
1993	308670.26499999996
1994	296819.04500000004
1995	272918.69
1996	253665.02250000002
1997	232605.43250000002
1998	216000.88999999996
1999	203165.53499999997
2000	197394.58
2001	191736.3125
2002	195181.99
2003	194386.47999999998
2004	185522.7475
2005	181772.6025
2006	181677.50750000004
2007	180377.63499999998
2008	182235.09500000003
2009	177898.175
2010	179781.95249999998
2011	176316.25
2012	180343.97000000003
2013	180894.435
2014	184440.3025
2015	183765.7375
2016	182697.95
2017	185767.94499999998
2018	187246.04
2019	189072.12999999998
2020	189473.53750000003