Year	thousand metric tons of CO2 equivalent
1990	3391.091
1991	3561.0404
1992	3683.6674
1993	3476.468
1994	3187.9146
1995	2798.6074
1996	2904.606
1997	3119.5832
1998	3228.2042
1999	3213.7512
2000	3379.2604
2001	3472.445
2002	3530.3166
2003	3626.809
2004	3767.763
2005	3542.2366
2006	3535.3528
2007	3714.9276
2008	3136.3904
2009	2826.5002
2010	3000.86
2011	3447.562
2012	3603.3862
2013	3503.1688
2014	3312.5382
2015	3553.2626
2016	3611.2236
2017	3514.463
2018	3552.3984
2019	3629.2526
2020	3957.9466