Year	thousand metric tons of CO2 equivalent
1990	60057.32248
1991	58884.29667
1992	52461.095
1993	49751.9175
1994	48102.775
1995	44296.145
1996	40144.2925
1997	35424.66
1998	30076.5225
1999	27812.555
2000	25702.0625
2001	23020.7225
2002	23130.5525
2003	22946.62
2004	19967.6325
2005	18194.6425
2006	17290.4825
2007	16564.7625
2008	15210.43
2009	13986.6525
2010	13665.2025
2011	13176.22
2012	13043.69
2013	13356.355
2014	12730.43
2015	11567.4325
2016	11078.505
2017	10904.845
2018	10514.7175
2019	10106.3375
2020	9573.405