Year	thousand metric tons of CO2 equivalent
1990	24990.80875
1991	25827.99011
1992	28311.72747
1993	30482.87018
1994	32310.42513
1995	33100.50931
1996	34534.45363
1997	35804.57965
1998	37812.7393
1999	39040.44148
2000	41229.5325
2001	38743.38766
2002	40600.78993
2003	41771.38198
2004	42558.53565
2005	44008.82221
2006	42587.33372
2007	44375.54499
2008	44228.07216
2009	44854.5392
2010	43289.80224
2011	43029.48507
2012	46151.52
2013	46288.4175
2014	46236.7075
2015	46788.945
2016	47016.3325
2017	47192.91
2018	47445.6575
2019	47587.8225
2020	48351.64