Year	thousand metric tons of CO2 equivalent
1990	1921.378595
1991	1857.704683
1992	1840.725
1993	1735.52
1994	1651.7975
1995	1361.875
1996	1143.7975
1997	1390.6525
1998	1448.36
1999	1507.495
2000	1571.6225
2001	1516.0425
2002	1435.795
2003	1554.0825
2004	1616.115
2005	1653.385
2006	1800.785
2007	1697.81
2008	1650.335
2009	1649.48
2010	1636.135
2011	1593.85
2012	1549.9175
2013	1546.9175
2014	1532.2675
2015	1557.1225
2016	1543.965
2017	1517.6825
2018	1483.4825
2019	1445.455
2020	1438.335