Year	thousand metric tons of CO2 equivalent
1990	799.6
1991	827.9
1992	852.1
1993	886
1994	919.1
1995	952
1996	984.3
1997	1015.2
1998	1046.8
1999	1077.2
2000	1110.7
2001	1150.5
2002	1184.4
2003	1219.4
2004	1255.4
2005	1285.7
2006	1323.1
2007	1362.7
2008	1402.2
2009	1440.9
2010	1480.4
2011	1525.4
2012	1572.5
2013	1623.5
2014	1679.3
2015	1721.3
2016	1780
2017	1831.5
2018	1869.2
2019	1917.8
2020	1970.2