Year MJ/$2017 PPP GDP 2000 6.72 2001 6.69 2002 6.67 2003 6.72 2004 6.56 2005 6.08 2006 5.83 2007 5.51 2008 5.26 2009 5.19 2010 5.37 2011 5.08 2012 5.09 2013 5.09 2014 4.83 2015 4.59 2016 4.43 2017 4.39 2018 4.26 2019 4.07 2020 4.06 2021 4.16 2022 3.98