Year kg of oil equivalent (constant 2011 PPP) 1990 134.848474114243 1991 140.970124893118 1992 139.947168234963 1993 137.883243088291 1994 133.745217295385 1995 130.761094602575 1996 133.025606193976 1997 123.952761608695 1998 121.139439349509 1999 117.665027595769 2000 114.194917574134 2001 111.444605009385 2002 106.330334756976 2003 104.657299706878 2004 101.816666717886 2005 99.1702728491032 2006 95.1059068779707 2007 89.3879722256452 2008 88.3143969321714 2009 86.9498054416099 2010 88.4887407400875 2011 80.7203156184333 2012 82.0302519527733 2013 79.4584911927078 2014 72.2786639217434 2015 70.8535975817143