Year	thousand metric tons of CO2 equivalent
1990	738.1
1991	765.7
1992	763.2
1993	814.4
1994	823.3
1995	849.7
1996	880
1997	844
1998	857.7
1999	877.18
2000	909.88
2001	983.58
2002	1047.98
2003	949.18
2004	958.58
2005	1115.58
2006	1167.68
2007	1233.98
2008	1288.88
2009	1306.18
2010	1295.18
2011	1334.28
2012	1420.18
2013	1389.38
2014	1357.88
2015	1205.18
2016	1061.68
2017	988.18
2018	873.58
2019	774.18
2020	581.78