Year MJ/$2017 PPP GDP 2000 4.88 2001 4.93 2002 5.05 2003 5.15 2004 5.15 2005 5.08 2006 5.77 2007 5.91 2008 5.76 2009 5.91 2010 6 2011 5.82 2012 5.61 2013 5.71 2014 5.54 2015 5.79 2016 6.22 2017 6.11 2018 6.05 2019 5.69 2020 5.79 2021 4.79