Year	thousand metric tons of CO2 equivalent
1990	5899.3125
1991	5599.5025
1992	4863.4
1993	3776.895
1994	3038.455
1995	2804.9525
1996	2838.62
1997	2604.26
1998	2615.73
1999	2760.9325
2000	2729.16
2001	2542.5725
2002	2232.34
2003	2362.85
2004	2398.83
2005	2309.24
2006	2183.9625
2007	2229.0875
2008	2128.1225
2009	2012.2075
2010	1889.405
2011	1895.9325
2012	1903.31
2013	1791.7675
2014	1895.5525
2015	1849.85
2016	1824.375
2017	1825.8225
2018	1779.815
2019	1715.055
2020	1867.515