Year	thousand metric tons of CO2 equivalent
1990	13832.15125
1991	14295.52239
1992	15670.24503
1993	16871.94982
1994	17883.48237
1995	18320.78569
1996	19114.45887
1997	19817.46035
1998	20928.9557
1999	21608.47602
2000	22820.115
2001	21444.05984
2002	22472.11257
2003	23120.02302
2004	23555.70435
2005	24358.42279
2006	23571.64378
2007	24561.40001
2008	24479.77534
2009	24826.5183
2010	23960.45276
2011	23816.36993
2012	25763.295
2013	25237.43
2014	25565.91
2015	25788.1475
2016	26321.53
2017	25390.91
2018	28053.285
2019	24444.875
2020	27843.25