Year kg of oil equivalent (constant 2011 PPP) 1990 137.926552450092 1991 131.288430546169 1992 138.462841301918 1993 128.597986506502 1994 152.645693617628 1995 137.758845588304 1996 147.12514443757 1997 137.697234663658 1998 144.561670300531 1999 146.571640977675 2000 145.267826019092 2001 145.395556520058 2002 173.14081370683 2003 172.60927579778 2004 155.456230138624 2005 140.630790473449 2006 142.592423283751 2007 121.273231350256 2008 128.830740443914 2009 133.37176193734 2010 150.708408186798 2011 134.307923408763 2012 138.250474756018 2013 128.390894501782