Year	thousand metric tons of CO2 equivalent
1990	634.063385
1991	676.735708
1992	692.14634
1993	793.245683
1994	781.463621
1995	787.884742
1996	813.630774
1997	775.362571
1998	767.449626
1999	746.936258
2000	723.27081
2001	707.558992
2002	688.979033
2003	697.707926
2004	676.632703
2005	679.901395
2006	663.306701
2007	643.111475
2008	668.690984
2009	686.771433
2010	715.370645
2011	651.491142
2012	661.244542
2013	658.313004
2014	603.427777
2015	608.795766
2016	627.544627
2017	622.186468
2018	607.828309
2019	613.07015
2020	602.011991