Year	thousand metric tons of CO2 equivalent
1990	3388.68
1991	3221.7725
1992	3129.2975
1993	3092.4025
1994	3049.975
1995	2909.9125
1996	2891.5375
1997	2898.8625
1998	2827.91
1999	2744.8375
2000	2671.245
2001	2615.1075
2002	2602.2425
2003	2559.945
2004	2482.875
2005	2453.98
2006	2435.1575
2007	2377.4475
2008	2356.3975
2009	2341.0975
2010	2352.445
2011	2323.5375
2012	2307.805
2013	2311.405
2014	2309.475
2015	2311.9825
2016	2296.615
2017	2238.065
2018	2146.3275
2019	2110.68
2020	2101.805