Year kt of CO2 equivalent 1990 5855541.47 1991 5810376.768 1992 5894661.485 1993 6006008.717 1994 6100512.901 1995 6168767.255 1996 6338951.954 1997 6600798.258 1998 6646954.438 1999 6647798.804 2000 6810655.857 2001 6759405.527 2002 6605762.539 2003 6670155.705 2004 6752991.006 2005 6772890.756 2006 6683781.075 2007 6787855.005 2008 6601049.857 2009 6184149.347 2010 6454244.95 2011 6254958.264 2012 6036576.77 2013 6177416.993 2014 6224268.726 2015 6112057.281 2016 6003240.816 2017 5947835.047 2018 6154645.789 2019 6039739.492 2020 5505180.89