Year % of GDP 1993 38.99170475355046 1994 41.564235297209905 1995 44.00548292900714 1996 43.890591238906055 1997 44.65134755249224 1998 46.495121521211765 1999 43.36577422494953 2000 40.75898304892549 2001 44.5845039914311 2002 44.97868338459777 2003 45.61429207402917 2004 45.486418746704366 2005 44.556937056113235 2006 44.08497236080702 2007 44.72356810144652 2008 44.22095902864613 2009 48.532444613521974 2010 47.480252091263694 2011 46.985007606071626 2012 48.197599096558555 2013 48.21159056590607 2014 50.48349228322033 2015 54.73068036977767 2016 54.718689162477055 2017 52.75449593409219 2018 50.88624589881094 2019 51.935730768320646 2020 53.93554441048936 2021 49.56601057565288 2022 45.955927549404414 2023 47.32103787917878