Year	thousand metric tons of CO2 equivalent
1990	57172.582500000004
1991	55977.97250000001
1992	58538.612499999996
1993	58368.1925
1994	58896.3775
1995	59412.3725
1996	60361.6425
1997	61790.92500000002
1998	62391.2975
1999	63597.72749999999
2000	63386.62
2001	62627.89749999999
2002	63346.5775
2003	63944.95250000001
2004	65721.61499999999
2005	67113.1775
2006	68761.54250000001
2007	70267.1375
2008	67571.53
2009	66851.86499999999
2010	66411.94
2011	68246.10999999999
2012	69522.05750000001
2013	68929.375
2014	64587.81999999999
2015	63520.2275
2016	64564.48749999999
2017	61405.43
2018	60091.27500000001
2019	59091.755
2020	59937.20500000001