Year kg of oil equivalent (constant 2011 PPP) 1990 449.341241014454 1991 433.107332378715 1992 432.478401637389 1993 416.682698915879 1994 404.671964664056 1995 380.67976995547 1996 420.220825853148 1997 368.412338497527 1998 395.630357026266 1999 427.626678380189 2000 423.475821405263 2001 453.991755573432 2002 457.682375944947 2003 447.267162423861 2004 434.931856874576 2005 470.173887994933 2006 463.397068625384 2007 470.504572933217 2008 441.832728181604 2009 467.149937824245 2010 483.325309197845 2011 476.945123810266 2012 459.028553549663 2013 458.244835840157 2014 461.973730282351