Year	thousand metric tons of CO2 equivalent
1990	6326.05777
1991	6179.228931
1992	5657.123891
1993	5412.216451
1994	6111.763212
1995	5693.532572
1996	6322.228578
1997	6416.869583
1998	6603.398589
1999	6882.658594
2000	6950.7744
2001	7062.677632
2002	7377.931664
2003	7400.740096
2004	7738.917527
2005	8110.938959
2006	8494.60266
2007	7935.39176
2008	8033.298461
2009	7905.451762
2010	8074.108462
2011	8444.019709
2012	8005.678756
2013	8775.217804
2014	8667.434251
2015	9093.855698
2016	7781.744515
2017	9194.390731
2018	9078.284348
2019	8900.228165
2020	8693.633782