Year kt of CO2 equivalent 1990 29609.85486 1991 29913.27133 1992 29441.2972 1993 28824.8548 1994 28051.54137 1995 27348.34617 1996 26717.47663 1997 25869.65552 1998 25019.76315 1999 24111.70027 2000 23101.18764 2001 22503.32837 2002 21494.63022 2003 20702.23394 2004 20325.37518 2005 18925.75183 2006 18306.43071 2007 18119.36025 2008 18229.59142 2009 18043.59423 2010 17877.53382 2011 17379.82122 2012 17085.27237 2013 17165.88989 2014 17181.46006 2015 17427.55105 2016 17368.65181 2017 16523.78363 2018 15529.25795 2019 15539.59728 2020 15200.5766