Year	thousand metric tons of CO2 equivalent
1990	535191.1039330001
1991	544256.507327
1992	557519.1359539998
1993	552620.1787599999
1994	572578.872173
1995	619333.0952949998
1996	646849.016785
1997	617819.7595259999
1998	631482.2233410001
1999	660129.9676349999
2000	668290.208404
2001	676177.9981349999
2002	691794.586398
2003	664684.2660229998
2004	712249.4722789997
2005	697376.0588239997
2006	730443.7659779998
2007	731903.736141
2008	728677.9843380002
2009	753541.4927240002
2010	755904.201229
2011	820145.7769699999
2012	836506.087557
2013	808258.7553450003
2014	835889.8286759999
2015	847991.4128690001
2016	840257.3416279999
2017	872141.390957
2018	868570.655398
2019	843207.9348330001
2020	837424.482378