Year % of GDP 1993 70.8739051969371 1994 77.65549669774964 1995 71.10403376093237 1996 67.29932557993831 1997 70.51731536038346 1998 73.27391363171266 1999 72.41019802908697 2000 61.88657293799119 2001 57.91219713644276 2002 54.599009453039905 2003 54.48489717627065 2004 53.533017123645706 2005 49.85697099969851 2006 45.7216849411506 2007 45.10141096425359 2008 44.411812650249935 2009 47.52281958815349 2010 45.38048215863965 2011 42.19121646152648 2012 44.93675108180713 2013 49.89658928291366 2014 48.48250432065914 2015 53.717814140006624 2016 54.544316883874465 2017 52.58798576677718 2018 52.09806135006861 2019 52.27885631502788 2020 53.00389503419277 2021 51.64028303031062 2022 48.97151701402095