Year	thousand metric tons of CO2 equivalent
1990	13405.60912
1991	13341.45519
1992	13399.47486
1993	13394.22193
1994	13411.2826
1995	13358.04507
1996	10605.1552
1997	10385.09914
1998	10906.52607
1999	10003.80561
2000	9832.017345
2001	10726.76685
2002	13343.28296
2003	14566.85646
2004	15533.39437
2005	15321.14707
2006	15565.63964
2007	13820.4538
2008	14625.88777
2009	14515.33653
2010	15180.7207
2011	14412.49949
2012	13815.38468
2013	14583.49787
2014	14331.16706
2015	14836.04045
2016	14757.26349
2017	15350.21353
2018	14370.20177
2019	14859.45101
2020	14960.56584