Year MJ/$2011 PPP GDP 1990 9.59722114258878 1991 10.1197890141012 1992 10.4744089033375 1993 10.4247943747793 1994 10.0774706756589 1995 10.3870981288635 1996 10.3134153301529 1997 10.3720944293882 1998 10.1670969101773 1999 10.4813398187454 2000 10.3377436072686 2001 10.3953664995208 2002 10.3371257669181 2003 9.89961628952427 2004 7.61184675249946 2005 7.6481289821619 2006 7.12633577371535 2007 6.90608799381428 2008 6.69151211173632 2009 6.15826626629951 2010 6.14578208507458 2011 6.19744837579525 2012 6.25969798205247 2013 5.95920363718512 2014 5.62894391298641 2015 5.67956070545213