Year	thousand metric tons of CO2 equivalent
1990	28785.550693999998
1991	29560.348604
1992	30187.823772
1993	31217.244612000006
1994	32244.909875999983
1995	32955.31203999998
1996	34281.67357999999
1997	35186.034941000005
1998	35926.764021
1999	36563.935579
2000	40636.572058000005
2001	41340.378880000004
2002	42183.673069
2003	43075.742519999985
2004	44648.89336
2005	46067.20258899999
2006	47656.223513
2007	49991.87355799999
2008	51567.712286999995
2009	52969.05025100003
2010	54856.26725599999
2011	56570.79936599999
2012	58906.674262
2013	60219.543294999996
2014	62373.68214600001
2015	63188.09102100001
2016	64400.496131
2017	66399.096131
2018	68149.696131
2019	68377.99613099998
2020	63711.396131