Year	thousand metric tons of CO2 equivalent
1990	73246.3736
1991	72452.293
1992	71288.6328
1993	70661.5812
1994	70452.2362
1995	70192.7676
1996	65621.0006
1997	64463.658
1998	68695.407
1999	85641.773
2000	93538.2962
2001	103522.965
2002	96177.6226
2003	55609.0946
2004	79281.5292
2005	56251.3442
2006	75762.8048
2007	70718.7972
2008	54795.3758
2009	58653.254
2010	47516.3682
2011	101145.2826
2012	100567.7884
2013	57953.699
2014	70406.9402
2015	66573.9152
2016	52132.3882
2017	74191.9872
2018	71526.0494
2019	56371.2594
2020	44205.0518