Year	thousand metric tons of CO2 equivalent
1970	16599.7814941406
1971	16609.881494140598
1972	17333.624365234402
1973	17954.7224121094
1974	18614.479492187504
1975	12469.4439941406
1976	11224.369970703101
1977	10170.419213867204
1978	8787.266259765605
1979	7688.441040039098
1980	6791.050366210899
1981	6503.185644531199
1982	6202.050463867203
1983	5215.108300781201
1984	4819.127294921895
1985	4206.435620117201
1986	3294.2460937500023
1987	2816.611547851602
1988	3223.9181396484028
1989	3613.984594726601
1990	-1053.214355468801
1991	-1014.4279785155995
1992	-742.0440063476999
1993	-568.4699096680015
1994	-267.34460449220023
1995	-240.83758544922057
1996	-300.64636230469114
1997	-314.8117370605505
1998	-220.71875
1999	-307.19961547851926
2000	-351.8300170898401
2001	-168.66806030272983
2002	-249.4276733398401
2003	-323.5215454101599
2004	-441.43798828125
2005	-456.52673339844023
2006	-477.8480834960901
2007	-432.61944580078034
2008	-481.08624267578034
2009	-426.8265991210901
2010	-248.04406738280977
2011	-285.05596923828034
2012	315.73803710937136
2013	865.9738159179688
2014	519.1400146484411
2015	1005.2239990234393
2016	1189.5859375