Year thousand metric tons of CO2 equivalent 1970 1372.5910806884804 1971 1727.8715748291004 1972 1742.0386237793016 1973 1766.0683742675794 1974 2153.5005466308594 1975 2195.8654145507785 1976 1920.9727895507797 1977 2296.3699943847696 1978 2382.9526032714803 1979 3536.6509597168 1980 2975.8914746093715 1981 2325.4146569824206 1982 4164.830977783198 1983 2900.1292712402283 1984 3305.2125866699193 1985 3339.5805114746095 1986 3800.8194819641094 1987 3819.84924560547 1988 4313.664895629878 1989 3728.7208148193386 1990 101.3257904052698 1991 -11.786560058590112 1992 64.49114990234011 1993 -131.48406982421875 1994 -272.8438110351599 1995 -297.3911743164099 1996 -254.1098022460901 1997 -268.27014160155886 1998 -235.38555908202943 1999 -261.49487304688046 2000 -30.975036621090112 2001 -135.9721679687991 2002 -46.16766357420056 2003 161.2601318358993 2004 -222.7109375 2005 -0.9270019530995341 2006 -145.8438110351999 2007 -45.378845214800094 2008 36.135986328099534 2009 50.134521484400466 2010 -71.3228759766007 2011 293.3482055664008 2012 587.4398803710992 2013 -319.46411132809953 2014 -3285.6574707030995 2015 -1421.5196533203016 2016 -699.31640625