Year	thousand metric tons of CO2 equivalent
1990	2891.6525
1991	2958.9425
1992	2887.205
1993	2258.7475
1994	2423.975
1995	2603.865
1996	2768.64
1997	2909.48
1998	3207.6075
1999	3061.92
2000	3002.5725
2001	2690.8425
2002	2860.89
2003	3169.1575
2004	3581.705
2005	3929.0375
2006	4218.135
2007	4474.75
2008	3945.555
2009	3801.1475
2010	3445.4275
2011	3928.2
2012	3931.8775
2013	3911.6875
2014	3869.095
2015	3692.49
2016	3524.255
2017	3005.7625
2018	2959.0775
2019	3125.635
2020	3392.3625