Year kt of CO2 equivalent 1990 143963.4518 1991 144369.5952 1992 142589.2461 1993 141173.3985 1994 142055.5843 1995 141174.8666 1996 135242.431 1997 136333.0255 1998 140251.3865 1999 155000.7971 2000 165945.0627 2001 176871.5074 2002 170481.6823 2003 130893.3894 2004 151512.9589 2005 133024.2817 2006 151664.4966 2007 149356.4064 2008 133197.6192 2009 137197.9021 2010 129412.3143 2011 177596.5253 2012 176798.0167 2013 140883.7869 2014 154126.1748 2015 151225.3204 2016 134687.3658 2017 157518.4258 2018 156428.4008 2019 144211.7857 2020 131484.7632