Year	thousand metric tons of CO2 equivalent
1990	1284.9
1991	1317.5
1992	1357.8
1993	1383.3
1994	1416.5
1995	1432.4
1996	1459.1
1997	1482.9
1998	1499.3
1999	1515.5
2000	1535.2
2001	1562.5
2002	1595.1
2003	1627.6
2004	1658.4
2005	1687.4
2006	1718.5
2007	1746.7
2008	1784
2009	1825.1
2010	1852.5
2011	1932.6
2012	1936.6
2013	1977.3
2014	2003.8
2015	2048.4
2016	2171.6
2017	2189.1
2018	2267.6
2019	2371
2020	2410.5