Year % of GDP 1989 62.12112727430905 1990 66.18001214975004 1991 69.18165555054887 1992 70.74953828648022 1993 68.33581305732277 1994 67.11969902204262 1995 66.93674770304384 1996 67.28444313022732 1997 67.0941535075125 1998 66.77180278801404 1999 67.03237595210854 2000 67.11291172940908 2001 67.42546715746595 2002 66.61845945836758 2003 66.66825906531221 2004 65.11719196354925 2005 65.04841404922536 2006 63.629692610583334 2007 63.35055057872443 2008 63.47275440764303 2009 64.64959809311523 2010 63.51746278813616 2011 63.37001972773374 2012 64.16700254141038 2013 65.15930070951666 2014 66.56107740129768 2015 66.27552731404234 2016 66.27447454507738 2017 66.19286706574512 2018 66.27526440549849 2019 66.3208913996012 2020 65.1828519469012 2021 65.05400155148244 2022 66.71055329774254 2023 67.09148082724835