Year % of GDP 1993 39.09900134562946 1994 41.67861092730735 1995 44.07924427974834 1996 43.93955781501284 1997 44.72938212510237 1998 46.551885401683606 1999 43.43864413191262 2000 40.89382953624334 2001 44.69043135891093 2002 45.124695769076595 2003 45.72911315054374 2004 45.5790242363507 2005 44.65064012508318 2006 44.17630172043895 2007 44.813694835933354 2008 44.29753820155501 2009 48.59377909194608 2010 47.55005251443159 2011 47.07429424686747 2012 48.27807692304257 2013 48.31482467189782 2014 50.57765100695249 2015 54.79718878221011 2016 54.78289425433556 2017 52.821754597113966 2018 50.990344902936855 2019 52.04540592330918 2020 54.013135817287825 2021 49.68996605607266 2022 46.09067673751312 2023 47.47540796085972