Year	thousand metric tons of CO2 equivalent
1990	322712.889979
1991	325689.7166689999
1992	327869.1524989999
1993	326765.4574999999
1994	334252.93250000005
1995	336603.2925
1996	339316.9024999999
1997	340924.43750000006
1998	350350.1400000001
1999	354973.585
2000	358783.92750000005
2001	352983.16
2002	368246.5874999999
2003	380383.6525
2004	384934.5025000001
2005	398510.59250000014
2006	401809.0624999999
2007	412926.8074999999
2008	419272.43499999994
2009	420473.54750000004
2010	427323.8575
2011	430076.08
2012	445022.6975
2013	453124.2675
2014	458238.92000000004
2015	464185.615
2016	478541.7925
2017	485531.9674999999
2018	496350.4175
2019	503521.0250000001
2020	517417.72