Year	thousand metric tons of CO2 equivalent
1990	13515.66162
1991	13251.67683
1992	10277.7775
1993	10567.8325
1994	10748.445
1995	10803.1
1996	10433.8
1997	10178.5
1998	10112.1825
1999	10254.955
2000	9729.495
2001	9796.9
2002	10030.115
2003	10480.1725
2004	10995.24
2005	11532.385
2006	12201.475
2007	12785.27
2008	13399.5475
2009	14412.9975
2010	15411.27
2011	16162.9975
2012	17326.625
2013	17839.8675
2014	18640.1975
2015	19361.4825
2016	20873.1725
2017	21368.68
2018	21738.6575
2019	22047.5275
2020	22265.51