Year	thousand metric tons of CO2 equivalent
1970	141386.33032806276
1971	169500.88625690877
1972	169997.5480031094
1973	192664.79224951426
1974	198880.2170789792
1975	185528.63418349554
1976	196458.42265703683
1977	203754.3231983117
1978	215574.43168127787
1979	222554.0484095641
1980	228954.75941515202
1981	231047.57212860652
1982	228564.67315500003
1983	227478.4988790973
1984	241118.4708622545
1985	248061.40406902437
1986	263269.2335331578
1987	257537.2418593175
1988	292194.66172216454
1989	291360.496411493
1990	-100159.74198293743
1991	-99825.31344270776
1992	-76058.92847967151
1993	-68068.51953554156
1994	-68759.67712640783
1995	-65277.4097695358
1996	-56668.430793762964
1997	-51183.312596321164
1998	-54051.455719948404
1999	-51826.0780448923
2000	-53361.791388512145
2001	-53909.88242101678
2002	-53529.33410501561
2003	-42084.93842887938
2004	-60941.981580259
2005	-43078.62261343068
2006	-37082.74895000517
2007	-40811.95061779156
2008	-47536.378301621095
2009	-23456.532002449898
2010	-31403.676345348988
2011	-20490.135317802597
2012	-11987.557984352781
2013	-12868.970446586516
2014	-12017.882656097818
2015	-18250.300296783495
2016	-40227.228528976855