Year	thousand metric tons of CO2 equivalent
1990	16198.7138
1991	16146.9512
1992	16082.6726
1993	16364.1336
1994	16606.944
1995	16553.006
1996	16287.8456
1997	16272.737
1998	16568.7106
1999	15885.1284
2000	16334.2442
2001	16804.4584
2002	17071.4664
2003	17744.7974
2004	18078.5574
2005	17497.9044
2006	17476.2994
2007	18765.4474
2008	18458.1498
2009	18210.78
2010	18882.4124
2011	17930.3322
2012	16823.2324
2013	16317.437
2014	17085.4128
2015	16410.2342
2016	16627.953
2017	17796.3216
2018	18861.2246
2019	19307.6882
2020	20587.926