Year kg of oil equivalent (constant 2011 PPP) 1990 165.907214107141 1991 165.898025657775 1992 163.415158293805 1993 163.236711816508 1994 160.481736118451 1995 159.436887811444 1996 158.885242386967 1997 154.72869194089 1998 151.020142647745 1999 148.529215032353 2000 145.869004862566 2001 143.217538117359 2002 141.764210436741 2003 140.751094283277 2004 138.933754897762 2005 135.359464883936 2006 130.961176745952 2007 128.094810203724 2008 125.986300556246 2009 124.154316721259 2010 125.16152794723 2011 120.341734360761 2012 117.74526905852 2013 116.458132084776 2014 113.478977038918 2015 110.097135435765