Year thousand metric tons of CO2 equivalent 1970 -146276.49961641213 1971 42840.60334764924 1972 12258.031067230739 1973 14188.074647888512 1974 34692.70078124957 1975 23227.083970489897 1976 74780.05312500036 1977 74954.96821408947 1978 58152.530126961006 1979 134514.1406250003 1980 164434.31740766793 1981 177864.7308544831 1982 86824.29155210637 1983 111972.32919593647 1984 84692.99833492452 1985 92919.93964934497 1986 92227.5072178652 1987 -72724.13211843037 1988 141876.53147666832 1989 225912.47024334111 1990 -135135.3046875 1991 -146490.3046875 1992 -153533.203125 1993 -158620.1953125 1994 -182135.1015625 1995 -190952.4921875 1996 -162175.4140625 1997 -44431.6953125 1998 -37052.890625 1999 -30053.6015625 2000 -93066.8984375 2001 -95430.71875 2002 -169336.015625 2003 -137017.796875 2004 -124161.09375 2005 -97579.796875 2006 -57454.0078125 2007 -26885.203125 2008 -55133.1953125 2009 -34503.3984375 2010 -57031.390625 2011 -123926.390625 2012 -134002.3046875 2013 -66599.3125 2014 -124413.8671875 2015 -82129.3125 2016 -74325.2109375