Year	thousand metric tons of CO2 equivalent
1990	35050.82
1991	34467.2
1992	36601.0925
1993	38461.575
1994	39621.7425
1995	41133.46
1996	40549.5675
1997	39331.2775
1998	39931.3575
1999	43356.835
2000	44096.58
2001	44953.9775
2002	45348.655
2003	46462.5725
2004	48256.72
2005	50780.3675
2006	54010.8025
2007	55330.325
2008	56106.575
2009	56905.33
2010	57813.905
2011	56066.36
2012	55799.6625
2013	56507.2275
2014	57434.22
2015	58814.7925
2016	59839.705
2017	62937.62
2018	64247.64
2019	64598.2825
2020	64089.9675