Year	thousand metric tons of CO2 equivalent
1990	239.9
1991	250.2
1992	251.2
1993	268.5
1994	269.7
1995	287.2
1996	289.1
1997	291.5
1998	293.1
1999	300.4
2000	328.5
2001	367.5
2002	418.6
2003	460.3
2004	467
2005	496
2006	522.1
2007	535.1
2008	583.1
2009	653.3
2010	685.7
2011	686.6
2012	728.6
2013	832.4
2014	859.4
2015	775.8
2016	857.6
2017	925.3
2018	920.5
2019	879.9
2020	783.8