Year	thousand metric tons of CO2 equivalent
1990	661606.527525
1991	641880.7599980001
1992	597623.7499999999
1993	575292.7849999999
1994	558980.3075
1995	531818.565
1996	512285.3275
1997	489577.63749999984
1998	470321.26499999996
1999	456065.9125
2000	449426.8949999999
2001	437888.01999999996
2002	438698.0300000001
2003	433854.0625
2004	422991.63999999996
2005	416578.37500000006
2006	413815.4100000001
2007	412726.6450000001
2008	413497.98749999993
2009	407604.22250000003
2010	407808.8125
2011	400969.355
2012	404431.7650000001
2013	404908.92500000005
2014	410259.6574999999
2015	411380.43999999994
2016	411142.0800000001
2017	412988.4125
2018	410077.99249999993
2019	409912.8900000001
2020	408879.12250000006