Year	thousand metric tons of CO2 equivalent
1990	6075.5644
1991	5512.3742
1992	3875.1026
1993	3258.183
1994	3267.0932
1995	2591.1398
1996	2653.69
1997	2736.2062
1998	2535.533
1999	2419.5216
2000	2560.1776
2001	2759.1522
2002	3321.8954
2003	3387.4256
2004	3145.3304
2005	2698.4496
2006	2364.034
2007	2616.589
2008	2842.5624
2009	3144.0192
2010	3062.0692
2011	3703.3056
2012	2900.1658
2013	3269.656
2014	3326.6336
2015	3469.1372
2016	3713.9442
2017	3674.2506
2018	3623.1138
2019	3732.7778
2020	3718.3546