Year % of GDP 1970 83.94379391100702 1971 98.17632579995525 1972 73.93119150012649 1973 85.1448753711869 1974 52.54727322554125 1975 78.06272547947809 1976 72.9741973840666 1977 80.00622442263115 1978 84.04820759493671 1979 91.51017362568192 1980 60.56855172413793 1981 50.5286129032258 1982 49.293150000000004 1983 55.50075 1984 84.7334641025641 1985 73.52974324324325 1986 61.37329230769231 1987 68.00857142857143 1988 70.52554285714285 1989 73.76815833333333 1990 81.76959574468083 1991 77.50979622641509 1992 68.08239999999999 1993 52.3992643678161 1994 46.087261956521736 1995 60.924070967741926 1996 52.83472019230769 1997 56.140833333333326 1998 52.16915294117646 1999 64.58125 2000 58.831308527131775 2001 70.58597777777779 2002 70.68828913043478 2003 57.30085810810811 2004 58.41188169014085 2005 68.54959328859061 2006 60.605479194630874 2007 57.942884848484844 2008 56.54329942857142 2009 51.99988722222222 2010 46.634579444444455 2011 51.53461210526316 2012 55.5335575 2013 51.54434066985647 2014 58.466428378378374 2015 66.29350196078431 2016 71.61570935251798 2017 65.4620852233677 2018 55.588996805111826 2019 66.39263076923076 2020 63.68458950617284 2021 63.96790649350649 2022 43.24992 2023 37.27139619047619