Year	thousand metric tons of CO2 equivalent
1990	5753.0986
1991	5591.9104
1992	5059.146
1993	4803.8792
1994	5191.6666
1995	4758.0766
1996	5369.0958
1997	5444.46
1998	5611.0122
1999	5869.7954
2000	5916.1344
2001	5997.4288
2002	6291.674
2003	6300.6736
2004	6560.1422
2005	6917.3548
2006	7291.4342
2007	6721.539
2008	6798.6614
2009	6661.7304
2010	6805.9028
2011	7145.2354
2012	6692.2158
2013	7449.0762
2014	7313.814
2015	7706.7568
2016	6379.435
2017	7768.7706
2018	7629.7536
2019	7404.2868
2020	7233.6818