Year	thousand metric tons of CO2 equivalent
1970	1939469.4601820002
1971	1281141.0669336712
1972	1328646.49327873
1973	1406314.3386690046
1974	1209848.517510589
1975	1390779.5180983918
1976	1273333.2545898198
1977	1461335.1015723688
1978	1478823.139840813
1979	1861565.0437501979
1980	1683122.5624105884
1981	1472539.6140478514
1982	1662269.0064863993
1983	1653494.7821470047
1984	1384623.3460204722
1985	1368573.4040644912
1986	1295589.5850822388
1987	1643778.2398983433
1988	1268599.3854695908
1989	1397958.5567453387
1990	-28373.878064106022
1991	-24675.768210275222
1992	-26667.0628502393
1993	-14061.596370015097
1994	-18402.021021966066
1995	-20544.200953984175
1996	-30912.958843789194
1997	-36600.268248859684
1998	-30110.477447915153
1999	-29736.87693623032
2000	-34484.94124315852
2001	18862.448622112854
2002	28690.40076617538
2003	21713.667531169624
2004	34701.51500657608
2005	32254.44151877046
2006	37853.70325540892
2007	45826.96369083224
2008	53547.684465381484
2009	49792.137913847866
2010	73937.94549795432
2011	85844.89593224667
2012	120205.4799835648
2013	126347.05528969312
2014	140030.93160860238
2015	127068.06133727718
2016	133969.8812382146