Year	thousand metric tons of CO2 equivalent
1990	104.335
1991	96.8225
1992	115.0875
1993	100.815
1994	102.8575
1995	76.745
1996	76.5175
1997	82.515
1998	89.4775
1999	96.9725
2000	88.6425
2001	97.4325
2002	99.025
2003	108.6175
2004	96.6475
2005	103.465
2006	111.535
2007	128.395
2008	137.5125
2009	148.075
2010	153.8525
2011	171.3825
2012	160.605
2013	192.045
2014	153.3225
2015	160.6925
2016	162.555
2017	170.3
2018	170.67
2019	178.86
2020	180.01