Year MJ/$2011 PPP GDP 1990 8.7949408936505 1991 8.87966363938745 1992 8.76877567081664 1993 8.69814522925702 1994 8.52774631776901 1995 8.40864268435353 1996 8.29370686802302 1997 8.01898713514249 1998 7.73536521999088 1999 7.58705235149105 2000 7.48867600654857 2001 7.27551277836255 2002 7.21573559236171 2003 7.07640483726059 2004 6.9645418882148 2005 6.77229037963236 2006 6.53240768807706 2007 6.52159494225485 2008 6.38911480741974 2009 6.25622984377229 2010 6.23245614389681 2011 6.08208980147165 2012 5.86359432475504 2013 5.84232953606258 2014 5.79220525254618 2015 5.56841646792208