Year	thousand metric tons of CO2 equivalent
1990	6658.7504
1991	5635.9846
1992	4941.3466
1993	5634.4052
1994	6321.8316
1995	6510.9424
1996	6661.7006
1997	6800.9858
1998	6665.068
1999	6611.428
2000	6673.9484
2001	6825.4516
2002	6909.1002
2003	6974.6304
2004	7064.3582
2005	7211.0338
2006	6747.4054
2007	6275.0456
2008	6265.599
2009	6256.7782
2010	6307.617
2011	6324.4242
2012	6396.8084
2013	6416.6552
2014	6423.2708
2015	6402.2618
2016	6355.2374
2017	6265.748
2018	6227.3358
2019	6379.1966
2020	6397.3448