Year	thousand metric tons of CO2 equivalent
1990	281829.44774200005
1991	284457.10601800005
1992	289112.8949979998
1993	290554.52960000007
1994	296240.7867999998
1995	303442.7614
1996	308293.963
1997	315049.65280000004
1998	330526.3126
1999	333048.52499999997
2000	337433.1181999999
2001	329482.9848
2002	345442.91120000003
2003	361673.2726
2004	364503.1104
2005	384698.62999999983
2006	381166.40619999985
2007	397011.3046000001
2008	407684.68119999993
2009	411399.1022
2010	422228.54140000005
2011	428886.18919999996
2012	436525.1808
2013	447227.94020000007
2014	453155.2496000004
2015	461562.366
2016	478176.99839999987
2017	482569.75680000003
2018	490867.6860000001
2019	502346.4672000001
2020	521290.8933999998