Year % of GDP 1962 14.676113360323855 1963 12.974448027784643 1964 14.3356915183083 1965 15.751807056466014 1966 16.142550509352294 1967 15.627366013177133 1968 16.771433828038706 1969 18.20153225001065 1970 16.12098076640724 1971 15.942963599885315 1972 13.839152106832845 1973 14.27011168953339 1974 17.15897796068157 1975 17.854010995646806 1976 18.038576346878727 1977 22.441315266376257 1978 22.114639333792123 1979 21.55609341391913 1980 20.049994736457013 1981 17.976855856377007 1982 19.758493433192175 1983 15.886627940418574 1984 22.752533783325095 1985 27.126871966968196 1986 32.849252164605126 1987 36.11121207967463 1988 36.692292164428345 1989 31.075117753717812 1990 39.08481028502286 1991 38.297250651104584 1992 39.66354636212521 1993 53.68345602832066 1994 62.258972113542086 1995 56.28904682161867 1996 50.29476562577558 1997 47.46452337871046 1998 46.96648493761385 1999 34.76233568176685 2000 35.3138037316551 2001 31.963110050996953 2002 31.966489109555297 2003 33.982706173801006 2004 34.41662194370553 2005 37.428371542060994 2006 38.44044612675714 2007 35.62620826435581 2008 38.339205947856534 2009 32.744727813260255 2010 39.117681749066776 2011 38.25326418031573 2012 36.76943825785142 2013 34.65620580185625 2014 33.619313064361315 2015 32.18040682600129 2016 30.61608232699878 2017 32.910849863456285 2018 35.21600008948178 2019 35.134870790796604 2020 29.48959048983922 2021 34.25518051097656 2022 39.36852043680341 2023 40.44112420729372