Year	thousand metric tons of CO2 equivalent
1990	281909.40693
1991	280680.29066
1992	285661.41811
1993	288568.38051
1994	297748.59443
1995	301392.83825
1996	310522.09479
1997	302269.02304
1998	295554.93975
1999	290647.98372
2000	287791.5041
2001	282340.76456000004
2002	284788.07222
2003	294130.94539
2004	294235.67577
2005	298112.74147
2006	301930.72641
2007	310096.45103
2008	292404.76061
2009	288645.20215
2010	296599.02755
2011	306629.71148
2012	300564.4742
2013	302304.16983
2014	302831.64113
2015	302820.79821
2016	307870.07976
2017	307199.35685
2018	311772.93894
2019	307663.28823999997
2020	305082.66593