Year	thousand metric tons of CO2 equivalent
1990	394.1
1991	398.5
1992	412.4
1993	416.9
1994	425.3
1995	447.6
1996	439.7
1997	466.5
1998	470.5
1999	470.4
2000	474.9
2001	512
2002	521.9
2003	531.3
2004	553.8
2005	562.5
2006	574.6
2007	580.3
2008	595.3
2009	603.4
2010	627.1
2011	681.8
2012	693.1
2013	684.8
2014	701.5
2015	723.4
2016	743.7
2017	783.9
2018	841.3
2019	800.5
2020	763.8