Year	thousand metric tons of CO2 equivalent
1990	2440.173
1991	2511.5142
1992	2578.6834
1993	2663.524
1994	2768.2412
1995	2867.3262
1996	2471.2842
1997	2499.922
1998	2890.451
1999	2633.3068
2000	2843.0392
2001	3315.7566
2002	3788.0866
2003	3718.742
2004	3598.6182
2005	4205.1674
2006	4183.473
2007	4221.2594
2008	4393.3246
2009	4382.1496
2010	4447.6202
2011	4807.1274
2012	5329.134
2013	5317.6908
2014	5349.9344
2015	5268.5506
2016	6471.7256
2017	6179.6558
2018	5854.5676
2019	6353.956
2020	6676.69