Year kg of oil equivalent (constant 2011 PPP) 1990 289.868087023196 1991 297.966533254198 1992 307.79706880385 1993 288.506364728996 1994 317.931992065144 1995 314.287346165965 1996 293.368290274513 1997 294.713576164763 1998 298.783880659727 1999 286.000678817888 2000 282.201946009105 2001 276.457555748383 2002 273.545599054592 2003 264.284459595328 2004 254.038290533633 2005 244.773395530694 2006 231.932730830827 2007 214.127415816192 2008 205.579947366858 2009 192.817405185781 2010 181.062958620126 2011 181.163763585993 2012 176.742452845638 2013 177.631049259629