Year	thousand metric tons of CO2 equivalent
1990	10473.4
1991	10803.4
1992	11041.9
1993	11386.900000000001
1994	11722.1
1995	12140.8
1996	12614.8
1997	12896.099999999999
1998	13091.599999999999
1999	13482
2000	13804.7
2001	14092.400000000001
2002	14355.8
2003	14602.1
2004	15282.2
2005	15785.1
2006	16381.3
2007	17505.2
2008	18246.699999999997
2009	19223.9
2010	20199.3
2011	21009.5
2012	22045.8
2013	22743.5
2014	24014
2015	24720.6
2016	25449
2017	26935.9
2018	28029.4
2019	27830.5
2020	26496.1