Year	thousand metric tons of CO2 equivalent
1990	156739.93939999997
1991	153249.503705
1992	145012.65953100004
1993	143005.5512
1994	143940.91360000003
1995	142921.843
1996	146735.17020000002
1997	145622.88519999996
1998	147486.57719999994
1999	147786.3056
2000	143813.99539999996
2001	141362.49840000004
2002	141246.2784
2003	140977.60159999997
2004	141132.44240000003
2005	136651.3568
2006	134881.17720000003
2007	138124.19199999998
2008	133438.94659999994
2009	130420.59400000001
2010	132707.02880000003
2011	129651.45599999998
2012	131200.54940000002
2013	133748.7772
2014	136426.337
2015	136823.2432
2016	134347.2506
2017	135086.49919999996
2018	131033.58
2019	130604.60900000001
2020	129915.87139999997