Year	thousand metric tons of CO2 equivalent
1990	16070.3056
1991	15715.626
1992	14265.5878
1993	15099.213
1994	15233.4322
1995	14719.7398
1996	16683.7684
1997	16287.1602
1998	17621.6638
1999	17336.8652
2000	17458.1214
2001	17145.1618
2002	16961.9216
2003	18065.2666
2004	17487.1466
2005	15819.032
2006	16316.9006
2007	16894.1564
2008	14806.1896
2009	14702.4558
2010	15601.3132
2011	14857.535
2012	14429.9944
2013	15539.9252
2014	16325.5426
2015	16460.5962
2016	16211.2
2017	16493.406
2018	16727.0082
2019	16337.6712
2020	17171.8626