Year	thousand metric tons of CO2 equivalent
1990	91248.02100200001
1991	77432.50506600001
1992	71914.27771800001
1993	69794.286538
1994	69036.06070399999
1995	68218.651335
1996	70235.134816
1997	69896.246673
1998	66183.995796
1999	64115.66880399999
2000	67009.843243
2001	67743.03872499999
2002	65053.512921
2003	66558.63728299999
2004	69563.610649
2005	69668.946456
2006	68658.780346
2007	70388.10628200001
2008	68030.227862
2009	59852.069369000004
2010	60868.673961
2011	61768.52957099999
2012	60349.139035
2013	59319.77323600001
2014	58728.50609800001
2015	59953.613705
2016	61372.660773999996
2017	62273.892797
2018	61488.806831
2019	62128.723054
2020	60992.74407699999