Year	thousand metric tons of CO2 equivalent
1990	4233.5875
1991	4480.4675
1992	4236.7075
1993	4445.685
1994	4382.29
1995	4452.275
1996	4651.96
1997	4732.445
1998	4824.295
1999	4376.2425
2000	4199.465
2001	4487.605
2002	4657.53
2003	4536.7775
2004	5004.965
2005	4766.2525
2006	4816.4825
2007	5457.645
2008	5609.6175
2009	5848.2925
2010	5955.6275
2011	5993.4775
2012	5973.9275
2013	5999.585
2014	6019.3975
2015	5997.01
2016	6047.445
2017	6146.3625
2018	6282.7425
2019	6246.775
2020	6322.865