Year	thousand metric tons of CO2 equivalent
1990	3975.008911
1991	2981.584606
1992	2727.525489
1993	2459.365256
1994	2813.409564
1995	2902.714417
1996	3133.931374
1997	3028.983752
1998	2823.962812
1999	2315.896406
2000	2569.803058
2001	2763.371202
2002	2758.136693
2003	2796.301991
2004	2976.154187
2005	2842.249414
2006	3172.437084
2007	2972.673809
2008	2877.042416
2009	2637.576221
2010	2465.332205
2011	2149.103739
2012	2032.872494
2013	1944.451975
2014	2018.729887
2015	1944.657821
2016	2050.405088
2017	1957.612993
2018	2026.502898
2019	2043.785603
2020	2031.692907