Year	thousand metric tons of CO2 equivalent
1970	820947.0653515478
1971	553264.9774161262
1972	1010236.1837998567
1973	1004269.1183756504
1974	593214.1161022508
1975	596291.9856145483
1976	705725.0733677635
1977	1204098.4392778429
1978	1084608.558282598
1979	1127122.9816366069
1980	1289364.0329978152
1981	1118122.6064986167
1982	2580377.9443706707
1983	2145641.2492186767
1984	1291545.1774093227
1985	1194605.4915288303
1986	1610769.147923908
1987	2258625.381930745
1988	1468955.333165506
1989	1301033.8492000774
1990	-150656.0733284006
1991	-144787.81781345356
1992	-123119.64216483252
1993	-226871.7681795767
1994	-264021.5113405369
1995	-262388.78186933557
1996	-262297.9700682655
1997	-277825.5216918863
1998	-234889.73758363817
1999	-250770.0497681481
2000	-281047.2864221215
2001	-255922.3393407414
2002	-261017.4413784672
2003	-294385.51297835016
2004	-289196.2121514409
2005	-286571.42092031235
2006	-349440.1480484392
2007	-418129.35521095153
2008	-371721.9849640508
2009	-373140.86923012603
2010	-301900.6394871245
2011	-277083.3411845844
2012	-195636.52539182868
2013	-244910.75499242268
2014	-410225.231156112
2015	-368415.7826181482
2016	-378017.78421669133