Year	thousand metric tons of CO2 equivalent
1990	24.96
1991	24.6175
1992	24.515
1993	24.595
1994	24.5375
1995	24.37
1996	24.54
1997	24.5425
1998	24.5425
1999	24.545
2000	24.545
2001	24.5475
2002	24.5475
2003	24.55
2004	24.5525
2005	24.5525
2006	24.535
2007	24.7175
2008	24.7175
2009	24.72
2010	24.9925
2011	25.335
2012	25.79
2013	25.57
2014	25.585
2015	25.54
2016	25.4925
2017	25.735
2018	25.8775
2019	25.98
2020	26.085