Year	thousand metric tons of CO2 equivalent
1990	0.371176
1991	0.43724
1992	0.486608
1993	0.529426
1994	0.559771
1995	0.607493
1996	0.665598
1997	0.692339
1998	0.7524
1999	0.803476
2000	0.837402
2001	0.896135
2002	0.945633
2003	1.000382
2004	1.052209
2005	1.097138
2006	1.136084
2007	1.144664
2008	1.176289
2009	1.11477
2010	1.140821
2011	1.122204
2012	1.140997
2013	1.16554
2014	1.132069
2015	1.160604
2016	1.166342
2017	1.166342
2018	1.166342
2019	1.166342
2020	1.166342