Year thousand metric tons of CO2 equivalent 1970 752.869624848938 1971 757.1734013717648 1972 748.691292739868 1973 824.3657234405521 1974 890.715117497253 1975 885.1185412628168 1976 707.622966943359 1977 747.4478675903318 1978 756.5070946594242 1979 888.5118019409181 1980 1029.076667950439 1981 725.3767460754389 1982 681.124653405762 1983 704.3518508972172 1984 646.5371316223141 1985 638.7602907470698 1986 472.53723490600595 1987 241.39115229492194 1988 500.6754999633787 1989 366.085376934814 1990 72.5684585571289 1991 60.222370624542236 1992 103.91339588165283 1993 130.88572502136185 1994 138.06873512268112 1995 134.19016790390015 1996 139.15639591216996 1997 109.16986322403 1998 138.19997787475586 1999 26.20175743102982 2000 53.36576747894287 2001 35.87376403808594 2002 27.127334594727017 2003 23.411734580994107 2004 102.31286621093705 2005 163.15649032592773 2006 165.90731811523392 2007 92.10009765625 2008 -2.8987693786621094 2009 23.818490982055664 2010 170.3391170501709 2011 279.558012008667 2012 382.15304946899414 2013 325.5202178955078 2014 595.9463958740234 2015 661.8693695068359 2016 803.3421936035156