Year	thousand metric tons of CO2 equivalent
1990	43.2
1991	43
1992	47.2
1993	50.5
1994	69.4
1995	71.1
1996	72.6
1997	76
1998	75.7
1999	76.5
2000	80
2001	79.3
2002	78.3
2003	83.7
2004	165.5
2005	180.6
2006	231.7
2007	268.2
2008	287.3
2009	324.8
2010	253.8
2011	142.4
2012	127.3
2013	146.4
2014	100.9
2015	234
2016	362.5
2017	386.5
2018	395.9
2019	398
2020	385.7