Year	thousand metric tons of CO2 equivalent
1990	199
1991	208.5
1992	191.1
1993	194.7
1994	194.7
1995	196.5
1996	216.7
1997	218.4
1998	228.5
1999	197.1
2000	201.3
2001	206.4
2002	212.4
2003	201.7
2004	239.4
2005	314.9
2006	336.4
2007	361.2
2008	367
2009	320.4
2010	314.7
2011	316.5
2012	254.1
2013	159
2014	144.9
2015	138.5
2016	128.8
2017	126.5
2018	158.9
2019	140.1
2020	128.9