Year kt of CO2 equivalent 1990 17818.96324 1991 16933.8688 1992 13947.77915 1993 11084.16884 1994 8577.493724 1995 7963.407918 1996 7314.632287 1997 7551.099456 1998 7473.512225 1999 6984.969994 2000 6617.470663 2001 6635.253266 2002 6670.936069 2003 6823.689172 2004 7371.928375 2005 7439.920478 2006 7930.139256 2007 8645.111533 2008 9021.62801 2009 8699.999088 2010 8792.343742 2011 9063.632399 2012 9857.954156 2013 10279.99391 2014 11819.94477 2015 12418.62533 2016 13231.9527 2017 14623.35748 2018 16021.22236 2019 17416.13084 2020 17692.28592