Year	thousand metric tons of CO2 equivalent
1970	46.20237609863019
1971	168.82490234375007
1972	1507.1637988281204
1973	1281.0915409851104
1974	1454.8579194641106
1975	1435.0803674316398
1976	1509.0758331298805
1977	1500.7706930542008
1978	1519.7363632202105
1979	1567.0336143493707
1980	1570.2500674438497
1981	1621.92024932861
1982	2112.6711132812493
1983	1302.432289123541
1984	2185.453982238769
1985	2159.3233596801983
1986	1917.8715972900002
1987	2153.7160659789997
1988	1899.8820724487005
1989	1933.5781005858994
1990	-2085.186035156299
1991	-2164.0322570801
1992	-751.2955932617006
1993	121.75311279299967
1994	401.9969787598002
1995	473.07496643070044
1996	650.2039031982004
1997	201.7432708739998
1998	513.1272277831995
1999	419.6700897216997
2000	726.6071624756005
2001	510.67378234860007
2002	519.2312774657985
2003	792.350143432599
2004	3583.3328552246003
2005	5008.7731475830005
2006	7057.5832672118995
2007	4945.018692016602
2008	7443.765762329102
2009	7018.314071655299
2010	7983.9247589111
2011	7803.9794769287
2012	8513.861801147501
2013	9263.8541870117
2014	9861.8241577148
2015	9078.718902587902
2016	8391.615722656199