Year	thousand metric tons of CO2 equivalent
1990	3478.44
1991	3632.38
1992	3562.7125
1993	3578.275
1994	3606.88
1995	3643.91
1996	3923.56
1997	3999.53
1998	4546.5725
1999	3971.215
2000	4574.24
2001	4008.845
2002	3960.315
2003	4272.115
2004	3873.0675
2005	4748.0475
2006	4480.925
2007	4263.62
2008	4339.34
2009	4216.1875
2010	4431.7075
2011	4923.48
2012	4602.7675
2013	4966.565
2014	4920.3875
2015	5159
2016	5247.125
2017	5387.2725
2018	5340.68
2019	5435.2275
2020	6015.9825