Year	thousand metric tons of CO2 equivalent
1990	242157.23209200002
1991	258946.96451
1992	260377.69693000003
1993	263491.529348
1994	268595.511768
1995	289287.619188
1996	315811.766715
1997	334834.71424199996
1998	334678.361768
1999	319015.346796
2000	331267.431823
2001	335410.54141099995
2002	316517.55099600006
2003	311591.5605840001
2004	336463.47017299995
2005	348757.07975999994
2006	349164.46209900005
2007	345340.644441
2008	352887.526779
2009	335230.10912
2010	335855.89145900006
2011	339838.6060580001
2012	352477.6206550001
2013	356614.5352540001
2014	354819.9498520001
2015	344916.4644510001
2016	326668.989543
2017	297649.21463299997
2018	265013.93972399994
2019	238443.164816
2020	198547.28990799995