Year	thousand metric tons of CO2 equivalent
1990	26758.83767
1991	25188.71811
1992	24924.92555
1993	25475.58942
1994	25688.30995
1995	26159.52922
1996	26180.61936
1997	26529.0799
1998	25261.23372
1999	24783.5854
2000	25096.51537
2001	24924.34849
2002	24444.63249
2003	25070.69516
2004	25140.38368
2005	25950.63481
2006	26300.76423
2007	27269.3363
2008	26152.49734
2009	22882.00005
2010	23663.24999
2011	23351.87433
2012	23773.8569
2013	22896.69802
2014	22388.38985
2015	22593.04966
2016	23502.73026
2017	24128.47846
2018	23041.91207
2019	23410.46607
2020	22864.40427