Year % of GDP 2002 9.82447298974943 2003 10.39172594491974 2004 13.704838249016738 2005 19.577646173930958 2006 26.77822611277551 2007 33.731013265300014 2008 17.40954555774867 2009 20.756889074550458 2010 20.02374876198045 2011 11.026955254749407 2012 8.510981902230883 2013 7.976353010550937 2014 5.04397372664641 2015 5.9441418138222115 2016 6.074511166342536 2017 7.254958724455453 2018 6.159399866764123 2019 5.284718737206783 2020 7.18574928766214 2021 4.750820946029311 2022 5.316154911198252