Year kt of CO2 equivalent 1990 329.271672 1991 389.584367 1992 382.344562 1993 402.589757 1994 453.199951 1995 470.502646 1996 491.504117 1997 482.063089 1998 503.359561 1999 420.186032 2000 479.805004 2001 1507.41719 2002 2377.726876 2003 3258.329062 2004 4016.576248 2005 4980.913434 2006 5326.531651 2007 5623.982367 2008 5975.853084 2009 6266.308801 2010 6571.319517 2011 6448.266188 2012 6367.67036 2013 6184.659531 2014 6066.191202 2015 5989.192873 2016 5734.657257 2017 5516.386641 2018 5278.058524 2019 5123.325408 2020 4794.894791