Year MJ/$2011 PPP GDP 1990 7.91224319575929 1991 7.86689333061773 1992 6.15327482195976 1993 5.50133730915865 1994 5.40208455962668 1995 4.47854695486581 1996 4.38099071821597 1997 4.19322072957328 1998 4.24086414788511 1999 5.01370938014992 2000 4.70543745478217 2001 4.44333927069421 2002 4.69696080798613 2003 4.34437721419277 2004 4.51718737428514 2005 4.27571653292244 2006 3.95869306438034 2007 3.56830033075486 2008 3.44266337837328 2009 3.40910494349766 2010 3.25674823642822 2011 3.32280096667451 2012 2.94132361651685 2013 3.38252848875172 2014 3.15887895342285 2015 2.88661148238797