Year	thousand metric tons of CO2 equivalent
1990	3098.0999999999995
1991	3175.7000000000003
1992	3416.6000000000004
1993	3621
1994	3833.3999999999996
1995	3895.9
1996	4030.2999999999997
1997	4123.599999999999
1998	4208.1
1999	4326.599999999999
2000	7370.86
2001	7596.860000000001
2002	7755.06
2003	7803.5599999999995
2004	8196.76
2005	8580.259999999998
2006	8832.26
2007	8885.860000000002
2008	9141.16
2009	9524.960000000001
2010	9534.06
2011	9574.260000000002
2012	10008.16
2013	10168.36
2014	10442.06
2015	10325.659999999998
2016	10244.96
2017	10414.860000000002
2018	10641.26
2019	10567.860000000002
2020	9947.060000000001