Year	thousand metric tons of CO2 equivalent
1990	15004.68
1991	15055.6425
1992	15115.1075
1993	15041.6525
1994	15068.45
1995	14973.77
1996	13680.5725
1997	13555.245
1998	14983.59
1999	13952.0975
2000	14393.4325
2001	14680.15
2002	15703.55
2003	17806.42
2004	17831.685
2005	17722.9375
2006	16430.255
2007	17494.65
2008	16669.3325
2009	16732.8175
2010	17503.85
2011	18023.3075
2012	17172.995
2013	17636.3025
2014	17060.2225
2015	17714.025
2016	17757.685
2017	18022.0225
2018	16230.375
2019	18037.015
2020	17050.16