Year kg of oil equivalent (constant 2011 PPP) 1990 176.546827013557 1991 174.779399227466 1992 177.308769538696 1993 178.652627539999 1994 171.693401620308 1995 168.659544314009 1996 172.987958389169 1997 170.631613652836 1998 167.407300565383 1999 162.799521722106 2000 159.470245779263 2001 153.03587245238 2002 152.309408745988 2003 149.706126927186 2004 146.315512292518 2005 142.783810880245 2006 144.646569185499 2007 144.068139374287 2008 144.12490494979 2009 141.859748101144 2010 139.493043470158 2011 136.904161098373 2012 130.118482429761 2013 126.529648434976 2014 122.152998564042 2015 124.480180338194