Year	thousand metric tons of CO2 equivalent
1990	8677.8025
1991	8639.6175
1992	8648.065
1993	8758.35
1994	8928.1975
1995	9159.625
1996	9665.085
1997	9777.185
1998	10317.525
1999	11007.355
2000	11372.8125
2001	11262.69
2002	11482.45
2003	12001.22
2004	13115.1725
2005	13644.5125
2006	13566.1325
2007	14160.875
2008	14916.485
2009	14923.065
2010	15824.35
2011	16127.315
2012	16646.0925
2013	17034.0975
2014	17469.3425
2015	18055.62
2016	19827.2075
2017	20263.01
2018	20991.235
2019	21683.95
2020	22598.565