Year	thousand metric tons of CO2 equivalent
1970	167513.70155901922
1971	186378.71077380268
1972	193038.5188072101
1973	215746.50432802958
1974	228780.36548386142
1975	221146.512375682
1976	229049.02925938013
1977	236426.61848424876
1978	248926.95501487175
1979	248050.33809784468
1980	236305.15457491734
1981	268813.2743751301
1982	251597.10918265607
1983	240598.76668136287
1984	245225.2052950671
1985	239128.8143355082
1986	259210.47165757138
1987	226502.8053103332
1988	268954.258021227
1989	272214.6704915317
1990	-156801.00931692266
1991	-141508.84200716167
1992	-108438.91505193722
1993	-84041.84241151805
1994	-83760.8197045334
1995	-100439.7398476611
1996	-92392.62366485727
1997	-83946.75619983775
1998	-85566.6108713157
1999	-81292.10392379912
2000	-86841.01404476224
2001	-86159.63535070527
2002	-78037.38757181243
2003	-66487.77290153547
2004	-85658.98011541582
2005	-66486.40093374388
2006	-63399.90739727186
2007	-66253.24187755823
2008	-70014.0804500588
2009	-34929.5017290125
2010	-48630.70490980208
2011	-33845.676455497894
2012	-36963.867432595376
2013	-38267.92772197761
2014	-36906.56978988701
2015	-36661.9826698302
2016	-60825.21302604696