Year % of GDP 1960 12.615471527874448 1961 12.893396778927793 1962 9.384850142859994 1963 17.939984423698107 1964 12.205805360183636 1965 12.892035104109148 1966 12.263294107667416 1967 11.354384350846678 1968 12.590626362183732 1969 13.275924691813138 1970 14.47917336613845 1971 14.650916979304917 1972 16.131952621638206 1973 16.856189136133757 1974 20.967778068845615 1975 18.2343303683349 1976 16.4155479824129 1977 15.155249405126481 1978 14.577887598525695 1979 16.5668826070039 1980 20.15540749196973 1981 19.632923992709227 1982 16.49117037173192 1983 21.90035252320329 1984 23.830074665772287 1985 20.449766584076084 1986 15.86065414524641 1987 16.26239733907487 1988 17.767244709777792 1989 14.390877647213355 1990 15.155603016930435 1991 16.59207776266463 1992 19.253374787895883 1993 19.599320547463535 1994 18.674759796102276 1995 16.98445999919555 1996 15.635591475868166 1997 16.57620926132469 1998 16.438584931205906 1999 20.98216647822845 2000 22.639761356794075 2001 26.936285022064038 2002 27.618357402230938 2003 28.140384723159283 2004 29.678252478753542 2005 27.08679520557937 2006 26.04169988530512 2007 25.292611373679836 2008 27.257569416479537 2009 22.105975604706778 2010 22.772178112004923 2011 23.93440517532519 2012 25.11427360865339 2013 25.785957325532827 2014 24.685405813129123 2015 26.953625936011406 2016 24.53368208043988 2017 24.319734374674947 2018 28.876203375974296 2019 28.890257867941436 2020 32.30207854634089 2021 37.65633075688333 2022 38.816065976339715 2023 33.853946593854694