Year kt of CO2 equivalent 1990 13760.72859 1991 12516.0382 1992 10526.93917 1993 9271.45371 1994 8073.630746 1995 7340.847783 1996 7508.408227 1997 7454.53617 1998 7444.991613 1999 7509.522057 2000 7580.5875 2001 6587.858333 2002 6580.179167 2003 6927.9475 2004 6633.145833 2005 6147.069167 2006 6080.07 2007 5952.995307 2008 5863.038113 2009 5787.14092 2010 5750.123726 2011 5702.854308 2012 5770.67239 2013 5820.087971 2014 5813.041053 2015 5512.941635 2016 5475.84889 2017 5395.031144 2018 5269.120899 2019 5191.288153 2020 5133.092908