Year	thousand metric tons of CO2 equivalent
1990	1968.635
1991	2086.4325
1992	2053.7775
1993	2184.59
1994	2061.08
1995	2044.885
1996	2221.0175
1997	2129.4125
1998	2195.585
1999	2253.87
2000	2341.02
2001	2340.6325
2002	2329.77
2003	2242.7375
2004	2262.28
2005	2331.3075
2006	2390.6475
2007	2424.78
2008	2319.9
2009	2361.2475
2010	2317.7875
2011	2286.305
2012	2201.2675
2013	2202.32
2014	2221.755
2015	2189.555
2016	2130.91
2017	2118.1825
2018	2145.1325
2019	2110.175
2020	2097.2375