Year	thousand metric tons of CO2 equivalent
1990	10856.699999999999
1991	11057.800000000003
1992	11289.7
1993	11410.9
1994	11632.400000000003
1995	11915.000000000005
1996	12384.199999999999
1997	12851.9
1998	13171.400000000003
1999	13558.900000000001
2000	13801.86
2001	14171.460000000001
2002	14572.16
2003	14942.060000000003
2004	15457.56
2005	15861.66
2006	16197.759999999998
2007	16500.660000000003
2008	16904.859999999997
2009	17321.359999999997
2010	17896.56000000001
2011	18611.56
2012	18939.66
2013	19656.760000000006
2014	20254.059999999994
2015	20560.86
2016	21406.76
2017	21872.76
2018	22343.059999999998
2019	22834.36
2020	22743.86