Year MJ/$2011 PPP GDP 1990 8.05731796657874 1991 8.47299071911463 1992 10.7324794374999 1993 10.8959762505906 1994 9.794668140403 1995 9.50682183625004 1996 9.13646536616828 1997 8.21544331337967 1998 7.53367734906708 1999 6.74551090604001 2000 6.16531337946526 2001 6.21404789262144 2002 5.74780291565057 2003 5.62746117574194 2004 5.33123245875832 2005 4.91340483492612 2006 4.54677538378641 2007 4.22956842116835 2008 4.19525299919162 2009 4.70227205709541 2010 5.00247575445667 2011 4.44840050006589 2012 4.43684764754036 2013 4.23252054913511 2014 4.09333992255859 2015 3.91412407131966