Year	thousand metric tons of CO2 equivalent
1990	21840.4525
1991	22536.3025
1992	22712.5625
1993	22308.2325
1994	23064.5725
1995	23262.825
1996	23008.7425
1997	23317.43
1998	23793.7325
1999	23998.925
2000	24503.5725
2001	25298.4
2002	25433.6975
2003	26197.1725
2004	26662.595
2005	27535.7375
2006	27553.8875
2007	28020.845
2008	28354.4825
2009	28429.735
2010	23956.14
2011	24028.425
2012	28088.185
2013	28278.275
2014	28245.125
2015	27780.935
2016	27094.375
2017	26617.83
2018	26567.1
2019	26757.27
2020	27315.1525