Year kg of oil equivalent (constant 2011 PPP) 1990 304.630571307942 1991 373.496744736043 1992 360.273967850641 1993 347.987789734628 1994 294.635783804813 1995 276.31681236479 1996 227.653665708953 1997 214.618601145401 1998 209.339975024658 1999 203.380270829616 2000 214.745743225706 2001 210.167071944191 2002 214.870183053883 2003 196.126289456905 2004 182.560225321224 2005 196.071618158434 2006 205.493346550965 2007 195.258578073171 2008 179.981749809709 2009 189.3832136937 2010 188.535325569704 2011 175.872106814022 2012 173.248907734323 2013 170.995158378438 2014 161.978727800047