Year	thousand metric tons of CO2 equivalent
1990	18996.09611
1991	19202.853773999996
1992	19106.790197000002
1993	18946.12303
1994	18886.960687
1995	19123.722465
1996	19458.369101999997
1997	19562.396721
1998	19996.834961
1999	20005.115594999992
2000	20114.230477999998
2001	20342.448322999997
2002	20515.722526
2003	20946.333196999996
2004	21179.840759
2005	21349.013419000003
2006	21767.257958000002
2007	22303.475429
2008	22082.283386000003
2009	21560.005290999998
2010	21919.444727000002
2011	21529.109261999994
2012	21590.509403999997
2013	21058.184453
2014	20841.468972999995
2015	21059.925475000004
2016	20997.129824999996
2017	21147.829824999997
2018	21055.629824999996
2019	20722.429825
2020	18627.429825