Year	thousand metric tons of CO2 equivalent
1990	222122.954321
1991	208728.279078
1992	188770.99060000002
1993	177011.5828
1994	159982.939
1995	150076.58459999997
1996	141529.2592
1997	138827.8594
1998	131732.241
1999	127380.01059999998
2000	127006.0206
2001	128556.008
2002	134143.68679999997
2003	131276.0924
2004	129401.85120000002
2005	129939.83059999999
2006	132340.66760000002
2007	132073.9278
2008	139091.41059999997
2009	139597.11660000004
2010	137888.77200000003
2011	142635.73320000002
2012	142998.6674
2013	147656.8544
2014	150945.0162
2015	151949.7828
2016	157546.78899999996
2017	161391.91279999996
2018	159360.29779999997
2019	166129.36780000004
2020	172405.75439999998