Year	thousand metric tons of CO2 equivalent
1990	36883.418744
1991	36622.210709
1992	35448.837984000005
1993	35214.439493
1994	34274.44367
1995	34634.521504000004
1996	35866.972895
1997	35159.239215
1998	34995.30345500001
1999	34690.357258
2000	34372.484783
2001	34796.416991
2002	34665.545725
2003	36565.59026299999
2004	35534.497932
2005	36150.654686999995
2006	36082.38709000001
2007	36227.013310999995
2008	36981.071008
2009	35517.192607000005
2010	36712.544849000005
2011	33656.18472999999
2012	34450.630456
2013	34573.267588999995
2014	31144.413019000003
2015	31852.495881
2016	31745.115308000008
2017	32306.966084000003
2018	31750.116857
2019	31962.967634999994
2020	30757.118410000003