Year kt of CO2 equivalent 1990 4986.832479 1991 4887.104093 1992 4376.845 1993 4104.48 1994 3628.07 1995 3378.705 1996 3123.1175 1997 3078.455 1998 2900.4325 1999 2785.61 2000 2799.545 2001 2863.7575 2002 2883.01 2003 3028.235 2004 3115.3775 2005 3307.4425 2006 3466.67 2007 3591.16 2008 4042.56 2009 4276.81 2010 4327.739377 2011 4483.400593 2012 4737.49931 2013 4910.983027 2014 5021.189244 2015 5234.96796 2016 5437.520157 2017 5524.097353 2018 5557.827049 2019 5640.656746 2020 5520.881442