Year % of GDP 1960 14.569987554856882 1961 14.121110696486092 1962 14.758520313228546 1963 15.272615875474685 1964 16.718181895590124 1965 17.019148813594875 1966 15.620690977212004 1967 15.228241782732535 1968 15.649250220060019 1969 15.598906767189325 1970 15.226998343002037 1971 15.162366031864208 1972 16.18776183185558 1973 20.092861688914887 1974 21.261186553499346 1975 21.181320165332668 1976 20.83001954734482 1977 20.681364816241594 1978 19.483866155050535 1979 20.358432198953764 1980 25.26174182851949 1981 25.750868644013035 1982 24.642428309578047 1983 24.699405069720143 1984 24.097527331403466 1985 24.254177542209593 1986 24.957521861243016 1987 24.194279406109594 1988 23.298655613642243 1989 24.838104115751612 1990 25.349718315772684 1991 24.39314725534869 1992 23.94375440833239 1993 22.978131725175285 1994 21.717512773323662 1995 22.682597463642097 1996 23.209276140722093 1997 23.05196348583195 1998 25.971697016492257 1999 28.121519325604172 2000 34.69729639246282 2001 33.35122477166257 2002 30.236141561163876 2003 29.64547092373427 2004 29.19032675410141 2005 29.58863376369574 2006 31.676229834166985 2007 35.00410428531101 2008 35.968146503669004 2009 28.761659779819226 2010 29.399183568134124 2011 31.344189933335603 2012 33.31870532595505 2013 32.66929457688322 2014 34.040729405862834 2015 33.15053122500427 2016 32.73174171727084 2017 36.544856305139106 2018 41.15712045638193 2019 41.77515933166836 2020 39.776224136096204 2021 48.71412578309137 2022 58.85997439342798 2023 49.795917316843905