Year % GDP 1960 21.39911044185057 1961 21.52984493298621 1962 21.973036052995727 1963 20.838038134759042 1964 19.976985034133083 1965 18.984482843010852 1966 17.803804760402993 1967 18.50346647372185 1968 17.656370432610107 1969 14.441140312057616 1970 16.059212456508543 1971 15.328292623749459 1972 14.634051923725872 1973 13.125753058361456 1974 12.506562141060877 1976 14.998850325774823 1977 14.57350544840019 1978 14.957318524975532 1981 14.855470386096332 1982 16.772445615264928 1983 18.346681706449676 1984 19.308643226338784 1985 20.414931533257953 1986 22.91791398872776 1987 23.089219402858674 1988 22.307355995150186 1989 21.93192353311724 1990 20.993811832153508 1991 22.17241389929295 1992 23.933097063582334 1993 26.02897649001069 1994 26.42711237963425 1995 27.210454585448147 1996 25.60483493136069 1997 20.615139786261768 1998 22.160968027827384 1999 22.822362489890033 2000 24.02522484107431 2001 19.910410455401106 2002 21.01275216882666 2003 21.517660726848973 2004 21.143649409803235 2005 19.840932383392225 2006 18.29756365750743 2007 17.026161863211115 2008 17.832521571261232 2009 24.56319915345119 2010 27.557958930907176 2011 32.06422306970892 2012 34.83651369567865 2013 33.30413318659417 2014 34.344129355032265 2015 35.045942823211064 2016 39.01101528620395 2017 39.712453932288305 2018 38.870373238295414 2019 40.65284773556475 2020 49.376097490990155 2021 53.21001199551121 2022 46.08654301336051 2023 47.451678613908626