Year	thousand metric tons of CO2 equivalent
1990	2582.744061
1991	2430.847042
1992	1464.8786
1993	1868.2812
1994	1911.4614
1995	1973.5348
1996	2004.8248
1997	1814.4624
1998	1659.7408
1999	1854.3944
2000	2269.2998
2001	2122.4752
2002	2774.2906
2003	3273.53
2004	3316.5314
2005	3688.1374
2006	4265.0952
2007	4126.5848
2008	4684.4408
2009	4783.4364
2010	4885.2332
2011	4793.9558
2012	4873.6112
2013	4970.938
2014	5188.8654
2015	5799.8548
2016	5306.188
2017	5285.5664
2018	5103.101
2019	5498.4576
2020	4615.5134