Year kt of CO2 equivalent 1990 15950.83482 1991 15591.26618 1992 17788.67223 1993 18782.68798 1994 19235.98034 1995 19948.40219 1996 21196.94787 1997 22198.17836 1998 23956.03524 1999 24540.66822 2000 25623.79391 2001 26452.33222 2002 27655.51593 2003 28717.68894 2004 28963.98535 2005 32238.91256 2006 34713.68845 2007 35914.54384 2008 38404.86883 2009 38946.46292 2010 40906.21441 2011 41607.08671 2012 43195.32451 2013 46013.64861 2014 48106.69701 2015 48874.34031 2016 49459.0278 2017 50342.13908 2018 51257.81097 2019 54194.74915 2020 54151.41004