Year kt of CO2 equivalent 1990 49720.01718 1991 40275.4087 1992 32649.02966 1993 27123.61927 1994 19963.16577 1995 16901.5776 1996 15384.0526 1997 14567.08091 1998 14082.65691 1999 13830.49372 2000 14245.23612 2001 11788.71086 2002 11230.13616 2003 11755.44996 2004 11831.40436 2005 12381.25516 2006 12740.83045 2007 13507.824 2008 12613.03964 2009 13369.95408 2010 13087.03193 2011 14276.08739 2012 15143.91575 2013 16151.1902 2014 16805.07456 2015 17142.29722 2016 17540.62774 2017 17482.17546 2018 17135.15848 2019 17843.006 2020 17669.44862