Year	thousand metric tons of CO2 equivalent
1990	9098.785
1991	8983.945
1992	9099.56
1993	8386.2475
1994	8947.7975
1995	8581.16
1996	9056.0875
1997	8923.825
1998	8831.165
1999	8406.4925
2000	8282.97
2001	8063.1325
2002	8106.0725
2003	8227.2925
2004	7793.96
2005	7172.92
2006	7398.3775
2007	7414.63
2008	7615.5225
2009	8181.31
2010	7992.1475
2011	8283.525
2012	8238.12
2013	8247.2025
2014	8157.075
2015	7648.295
2016	7816.42
2017	7414.545
2018	7477.8375
2019	7327.39
2020	6892.7