Year	thousand metric tons of CO2 equivalent
1990	3098.0999999999995
1991	3175.7
1992	3416.6000000000004
1993	3621.0000000000005
1994	3833.3999999999996
1995	3895.9
1996	4030.3
1997	4123.599999999999
1998	4208.099999999999
1999	4326.599999999999
2000	7370.860000000001
2001	7596.86
2002	7755.06
2003	7803.5599999999995
2004	8196.76
2005	8580.259999999998
2006	8832.26
2007	8885.860000000002
2008	9141.16
2009	9524.96
2010	9534.06
2011	9574.260000000002
2012	10008.160000000002
2013	10168.36
2014	10442.06
2015	10325.659999999998
2016	10244.96
2017	10414.860000000002
2018	10641.259999999998
2019	10567.860000000002
2020	9947.06