Year % of GDP 2000 35.97667553175378 2001 45.575034338947 2002 49.36317973532553 2003 55.89261310667377 2004 58.01355754930029 2005 50.72062422764255 2006 35.31971168860194 2007 26.938232592460597 2008 32.77892247524504 2009 38.11033200451486 2010 50.532531454527174 2011 55.817662542209725 2012 54.32546434499709 2013 49.18665491278592 2014 45.765787625923984 2015 47.803727925041755 2016 45.502418854832165 2017 41.8710805518659 2018 42.88276995404298 2019 38.9055795727763 2020 29.556679817007474 2021 31.418888418137296 2022 43.27540172293982