Year	thousand metric tons of CO2 equivalent
1970	1123083.0031155013
1971	796769.0999168948
1972	966499.3395965458
1973	813844.8906440196
1974	872800.1886210771
1975	991802.6900284995
1976	1140131.8551606562
1977	891685.8439847031
1978	1068942.7005155294
1979	1145013.1189283151
1980	1210245.1856939704
1981	1100130.1150438273
1982	1180845.152813566
1983	1184823.262431356
1984	958463.7130111302
1985	1007478.2491897208
1986	1071200.0673259192
1987	1273863.8588887616
1988	1104676.1336806691
1989	1107173.828637178
1990	-44640.186106891044
1991	-49379.54944334943
1992	-47530.72525079577
1993	-30302.53443227689
1994	-30826.91924075783
1995	-32282.74203321317
1996	-25147.093666836423
1997	-17924.34386168434
1998	-9508.823231577939
1999	-17274.4515842652
2000	-14742.791906520622
2001	-5380.429719835622
2002	-6304.043924838337
2003	3509.0814608924848
2004	1667.839271485398
2005	2750.9629616731872
2006	12346.84918262011
2007	15845.35816061496
2008	31705.965363204232
2009	22143.307736218027
2010	22767.237002774495
2011	32413.666022836507
2012	37554.207152709365
2013	53059.02316357198
2014	40295.06204888219
2015	50717.37440478789
2016	65257.37745498068