Year	thousand metric tons of CO2 equivalent
1990	2315670.8
1991	2320506.2
1992	2272536.8
1993	2287586.1
1994	2279000.9
1995	2344983.4
1996	2393393.9
1997	2412596.6
1998	2409860.8
1999	2406380.3
2000	2500748.8
2001	2531912.7
2002	2529556.7
2003	2668823.3
2004	2794280.3
2005	2904130
2006	2970254
2007	3029052.2
2008	3075157.6
2009	3013724.8
2010	3152093
2011	3242720.6
2012	3294096.7
2013	3318114
2014	3340723.3
2015	3327987.1
2016	3290597.1
2017	3330404
2018	3415876.2
2019	3453832.8
2020	3265616.1