Year	thousand metric tons of CO2 equivalent
1990	202.4
1991	211
1992	203.5
1993	201.2
1994	206.2
1995	206.2
1996	236.9
1997	238.2
1998	238.5
1999	214.3
2000	208.7
2001	219.3
2002	222.2
2003	226.5
2004	235.4
2005	250.5
2006	250.9
2007	254.9
2008	250.3
2009	259.7
2010	305.2
2011	324.7
2012	337.2
2013	356.4
2014	381
2015	395.2
2016	398.9
2017	417
2018	427.8
2019	432.7
2020	355.7