Year thousand metric tons of CO2 equivalent 1970 -7.129489567494402 1971 -7.0415737414359985 1972 -7.152518762874604 1973 -7.850041066694297 1974 -9.142273346900904 1975 -13.290583036947293 1976 -14.2640686248541 1977 -13.571153933715804 1978 -14.881975988888694 1979 -14.038775491332997 1980 -22.900840967464404 1981 7.557254813957199 1982 13.383287403917295 1983 25.208410124683404 1984 20.141431721258208 1985 -0.5276054421901986 1986 -12.00344301328661 1987 -32.984335774207004 1988 -27.520922877597997 1989 -31.854426428509 1990 -34.95495423674606 1991 -25.38315765559696 1992 15.353359684348106 1993 -8.440556868911017 1994 -21.750016853213083 1995 5.055693745613098 1996 -1.0734126418828964 1997 -5.022454544902075 1998 25.288386344910123 1999 4.519818976521037 2000 -217.8650641292329 2001 -168.97288545966103 2002 -153.83956423401787 2003 -137.65887224674202 2004 -158.41814804077103 2005 -162.25991344451904 2006 -161.74557213485195 2007 -163.129300475121 2008 -114.86718010902405 2009 383.44962680339813 2010 -207.24462203681492 2011 -169.61860358715103 2012 -40.56001256406307 2013 -187.618876516819 2014 -265.45776875317097 2015 -266.57261051237583 2016 -264.847792580724