Year	thousand metric tons of CO2 equivalent
1990	5033.038026
1991	4753.874501
1992	4645.313387
1993	4683.262733999999
1994	4614.6315460000005
1995	4615.410979
1996	4927.416533
1997	4898.089215999999
1998	4719.651168
1999	4581.482027
2000	4503.0105300000005
2001	4552.039003000001
2002	4531.038164999999
2003	4734.811622000001
2004	4817.069930000001
2005	4900.963701
2006	5079.93328
2007	5288.409009
2008	5486.381565
2009	5433.155509
2010	5619.835347
2011	5689.402157999999
2012	5632.176997999999
2013	5457.070004000001
2014	5412.838402
2015	5532.752678000001
2016	5658.128335
2017	5950.028335
2018	6236.628335
2019	6239.528335000001
2020	5960.228335