Year kg of oil equivalent (constant 2011 PPP) 1990 140.758753243343 1991 147.751598769521 1992 154.136418462574 1993 173.213547165394 1994 175.496336041065 1995 172.574410185275 1996 169.447396285386 1997 165.608361773344 1998 163.041881556414 1999 157.544655870545 2000 158.65124912827 2001 153.805797708201 2002 151.048885417264 2003 150.321956648137 2004 145.161685559714 2005 143.132644227746 2006 131.847601896188 2007 118.520185095616 2008 115.526874004329 2009 122.212168382312 2010 119.06996428316 2011 110.203440055223 2012 108.710756651946 2013 108.382265734577 2014 106.953693720793