Year % of GDP 1989 50.26173830250428 1990 56.19485040235771 1991 57.13492152154062 1992 60.46953411658584 1993 60.5134265480218 1994 56.90656790472774 1995 57.20596845219852 1996 58.159652195630095 1997 58.03517217923358 1998 58.691848243457436 1999 58.44516590348579 2000 57.73152518704501 2001 58.15000938700279 2002 57.19585564943297 2003 57.01665064133762 2004 55.34274269637627 2005 55.504656935192074 2006 55.19458211522373 2007 55.62852045386103 2008 55.24280068809661 2009 57.335333711188795 2010 55.80969348134393 2011 55.83230228881742 2012 56.8050419786901 2013 57.69595951396279 2014 58.449914614465435 2015 67.44430657567874 2016 67.97984072151093 2017 68.02648608133899 2018 67.56137261398999 2019 67.82030506775591 2020 67.25400467459855 2021 64.14527597312662 2022 64.30186381223028 2023 65.3296507058047