Year MJ/$2011 PPP GDP 1990 4.38778180584259 1991 4.34289439233093 1992 4.33361923117361 1993 4.1973652263354 1994 4.222246351143 1995 4.20516525977352 1996 4.24129705144879 1997 4.18565081200323 1998 4.22836540838785 1999 4.27817694581584 2000 4.1699631469789 2001 4.19700616058142 2002 4.26436022072027 2003 4.29254338956044 2004 4.21626878063223 2005 4.19596292809603 2006 4.166171624473 2007 4.01336654017103 2008 3.98867163344584 2009 4.03398063608293 2010 4.01488185602033 2011 3.92064264321344 2012 3.97319333056604 2013 3.93895087344562 2014 3.92803228443822 2015 3.82448590854755