Year thousand metric tons of CO2 equivalent 1970 1057005.3150511193 1971 738864.8229181229 1972 1210303.8796661636 1973 1133431.5269394894 1974 778999.373852112 1975 744421.6183574753 1976 885772.6573853551 1977 1292340.7187790056 1978 1185534.7770834765 1979 1272341.5820924551 1980 1399164.207597719 1981 1194852.02107071 1982 2687457.9763814546 1983 2152019.329423468 1984 1308490.6520378059 1985 1208632.6375521463 1986 1614268.94773406 1987 2312315.9435945973 1988 1430049.8469005038 1989 1267629.4512153124 1990 -197529.0795185787 1991 -173937.52445653573 1992 -196792.83923198457 1993 -182064.51164194298 1994 -210452.49738744632 1995 -214587.67552882878 1996 -225428.90897931 1997 -235053.18113418669 1998 -219901.27074227444 1999 -220324.7058686204 2000 -200179.81702365534 2001 -158440.07670153512 2002 -143984.61312028812 2003 -157498.1829810827 2004 -109329.03903677702 2005 -134599.75461916137 2006 -137386.00589215787 2007 -77545.54808206708 2008 -65713.33318012343 2009 -126393.90333409165 2010 -101966.95346649205 2011 -14696.884419876662 2012 20278.58088374828 2013 18160.424152667892 2014 39006.77147991208 2015 -28920.517834496153 2016 -124153.42932325305