Year % of GDP 2001 30.59122198896646 2002 30.348235070549666 2003 29.707648390589625 2004 31.23835785210522 2005 35.79931820616159 2006 41.71746089032503 2007 36.85783326965924 2008 47.21098833546934 2009 28.874887268293154 2010 34.597081874175636 2011 38.74729619254449 2012 32.82908559600178 2013 34.91024254879051 2014 31.654536847314418 2015 19.945714923140688 2016 19.485290814322827 2017 16.308173648486083 2018 23.031057525002367 2019 23.638146892083526 2020 18.744870344834084 2021 20.0514136790167