Year	thousand metric tons of CO2 equivalent
1990	3852.761684
1991	3683.004961
1992	3283.320894
1993	2854.4775
1994	2464.53
1995	2289.105
1996	2320.3625
1997	2225.2875
1998	2019.7875
1999	1791
2000	1688.7625
2001	1643.27
2002	1607.4425
2003	1567.825
2004	1516.32
2005	1378.4625
2006	1349.3525
2007	1304.62
2008	1275.41
2009	1223.03
2010	1192.745
2011	1181.3025
2012	1156.6675
2013	1174.9525
2014	1156.85
2015	1148.4475
2016	1132.5975
2017	1097.565
2018	1083.185
2019	1055.505
2020	1034.465