Year	thousand metric tons of CO2 equivalent
1990	16132.96836
1991	15817.86294
1992	13967.37
1993	13361.125
1994	12663.345
1995	11879.1175
1996	11190.7075
1997	10822.4875
1998	10674.88
1999	10417.4975
2000	9751.2225
2001	9513.75
2002	9223.3825
2003	9021.4575
2004	8803.1975
2005	8824.4025
2006	8827.755
2007	8780.675
2008	8749.8325
2009	8951.6725
2010	8992.365
2011	9056.7775
2012	9259.1925
2013	9386.4975
2014	9375.1925
2015	9379.58
2016	9245.52
2017	9339.335
2018	9271.46
2019	9198.5175
2020	9187.6975