Year	thousand metric tons of CO2 equivalent
1990	0.558485
1991	0.567607
1992	0.57673
1993	0.585853
1994	0.594975
1995	0.604098
1996	0.612724
1997	0.62135
1998	0.629976
1999	0.638603
2000	0.647229
2001	0.651922
2002	0.656615
2003	0.661307
2004	0.666
2005	0.670693
2006	0.672649
2007	0.674604
2008	0.676559
2009	0.678515
2010	0.68047
2011	0.684283
2012	0.688096
2013	0.691909
2014	0.695722
2015	0.699535
2016	0.699535
2017	0.699535
2018	0.699535
2019	0.699535
2020	0.699535