Year	thousand metric tons of CO2 equivalent
1990	3692.1800000000007
1991	3755.47
1992	3878.56
1993	3974.8500000000004
1994	4172.439999999999
1995	4379.95
1996	4534.46
1997	4721.57
1998	4877.88
1999	5007.880000000001
2000	4980.340000000001
2001	5060.94
2002	5249.24
2003	5420.74
2004	5613.540000000001
2005	5756.84
2006	5923.639999999999
2007	5885.6399999999985
2008	6071.84
2009	6281.14
2010	6437.9400000000005
2011	6763.039999999999
2012	6721.44
2013	7070.54
2014	7354.44
2015	7511.539999999999
2016	7824.54
2017	7884.9400000000005
2018	7950.639999999999
2019	8261.34
2020	8222.74