Year	thousand metric tons of CO2 equivalent
1990	812.579609
1991	796.708491
1992	705.885
1993	628.69
1994	619.8825
1995	611.63
1996	610.18
1997	608.705
1998	557.9675
1999	564.37
2000	570.2625
2001	590.0025
2002	613.0275
2003	636.7275
2004	669.2375
2005	671.17
2006	691.0725
2007	720.0075
2008	727.135
2009	667.7675
2010	662.8225
2011	650.335
2012	684.4425
2013	756.9225
2014	776.9175
2015	792.2
2016	809.755
2017	758.2225
2018	683.2975
2019	662.9125
2020	669.745