Year thousand metric tons of CO2 equivalent 1970 1157712.6791043556 1971 819598.8020485608 1972 994325.2844214123 1973 836941.783609787 1974 898600.7152485775 1975 1021244.3727035827 1976 1173994.0185716879 1977 918588.5091578821 1978 1102048.714016031 1979 1180853.6968511199 1980 1249414.5095418468 1981 1139941.031993093 1982 1222562.5219056027 1983 1227835.101787332 1984 993878.0081910139 1985 1044255.1774054167 1986 1109638.1984321687 1987 1319497.5356907402 1988 1144097.2858480068 1989 1147471.9747563591 1990 -46879.550866120204 1991 -52090.39798341703 1992 -50539.13729627486 1993 -35286.7239632751 1994 -37478.93082241771 1995 -43207.541918665476 1996 -31859.46946831077 1997 -25672.86628766367 1998 -26984.347523630004 1999 -25930.32368056586 2000 -28021.595185204988 2001 -22071.026960462914 2002 -8782.9675041435 2003 -4049.7811451263333 2004 -8449.594329029835 2005 -13711.76651898137 2006 -14361.846689746608 2007 5027.287812650153 2008 -1156.288810014703 2009 875.5573638084447 2010 -12985.858457581058 2011 23557.178934096642 2012 28700.163784787044 2013 54946.93711008101 2014 41143.11834153549 2015 47237.680853009006 2016 53255.059516771864