Year thousand metric tons of CO2 equivalent 1970 11699.900928283689 1971 11435.571350090026 1972 11318.410446159363 1973 12172.817726146699 1974 9769.849439041136 1975 10351.745595161437 1976 10531.001961639404 1977 12210.06754837036 1978 10493.268424621583 1979 11356.56513723755 1980 13918.662673744204 1981 11776.285854400634 1982 13447.28609602356 1983 12577.53026029205 1984 12511.874398239139 1985 11444.763546707154 1986 11500.641404510498 1987 11881.124133895873 1988 11025.94958920288 1989 12060.66054398346 1990 -92.22874546051025 1991 -157.46091842651367 1992 -164.09528923034668 1993 -162.50108909606934 1994 -336.3825206756592 1995 -365.78127670288086 1996 -322.1464424133301 1997 -415.17108917235964 1998 -49.0649995803833 1999 -24.84771728515625 2000 641.8160457611084 2001 791.5508184432983 2002 594.0963087081909 2003 519.8775720596313 2004 607.8610153198206 2005 774.6796836852991 2006 1022.2391109466589 2007 1117.27852058411 2008 1115.0345411300696 2009 1581.1090211868286 2010 1780.524110794071 2011 2135.9813566207886 2012 2136.8921995163 2013 2154.5183181762695 2014 2245.8681383132935 2015 2593.753145217903 2016 3643.578604698181