Year % of GDP 1960 28.435991407110713 1961 26.74959189486237 1962 25.972305756271197 1963 24.928692626190802 1964 25.188508696653276 1965 25.094642666493215 1966 24.767429081112297 1967 24.9768690519402 1968 24.63163313488932 1969 24.57633255422874 1970 26.06773345320557 1971 24.102905451556015 1972 23.034127101296626 1973 24.67325408086381 1974 33.9967918420809 1975 33.05594057581927 1976 33.73727206602729 1977 36.16613470475556 1978 34.24396110258049 1979 34.002013470303496 1980 35.4929431038133 1981 32.73638213947077 1982 34.37397524520513 1983 27.896922788106156 1984 28.133375007696134 1985 28.798401480803687 1986 29.081901879415735 1987 30.34936281271703 1988 31.470034130049928 1989 25.47850816043498 1990 24.931249601846694 1991 24.523461042891263 1992 25.344552026569495 1993 23.173542691070278 1994 23.250576423918446 1995 25.10517324423021 1996 26.014163810212715 1997 27.3568381741159 1998 27.638662720054352 1999 31.11462936175249 2000 33.2790402199291 2001 32.98011387437717 2002 35.88452235026534 2003 37.570412459493916 2004 40.025761075837934 2005 39.89206368353893 2006 40.464358559325824 2007 39.56033759332646 2008 40.33271215612431 2009 32.83505186307468 2010 33.73464811049109 2011 36.612035764759206 2012 36.889934381111324 2013 36.39746018822008 2014 35.12831017067111 2015 37.19868252581822 2016 36.12388378127 2017 35.974876954632016 2018 40.32888440308515 2019 40.09003889687504 2020 41.542595726702146 2021 48.391735736683316 2022 50.6806566548012 2023 43.456878603839606