Year % of GDP 1960 21.31397525929117 1961 24.91922307918701 1962 25.609208353849723 1963 25.652016610760192 1964 22.23515807443913 1965 22.937685846313126 1966 28.57873266776697 1967 27.491066114810813 1968 29.11986805070601 1969 30.735703599844005 1970 34.43437425611011 1971 37.57122106109177 1972 39.35825834132748 1973 41.52845861000461 1974 41.5831394087376 1975 38.12491836235154 1976 39.12379941161606 1977 29.33532033586707 1978 32.86736445444382 1979 34.70514488177193 1980 35.31144973791561 1981 35.62885339683899 1982 33.81247623496259 1983 22.471015390759096 1984 18.626815390548654 1985 19.121009406212515 1986 21.651710775764435 1987 23.094516657106787 1988 9.440432796500716 1989 7.731792430536691 1990 21.140686609054722 1991 24.107358705003502 1992 29.75866457336155 1993 31.061195260338714 1994 33.68337304415289 1995 38.04409521777095 1996 40.41417379920397 1997 38.81298076296748 1998 41.13718711638761 1999 38.99192054720841 2000 36.48969552056365 2001 26.66105445063753 2002 23.80830228589891 2003 28.71406454099703 2004 28.271633165764378 2005 27.750603947545198 2006 29.42238828414565 2007 36.04435431540187 2008 42.328061510019566 2009 31.431627897083224 2010 38.212941914331026 2011 38.637529078078416 2012 43.68892175801452 2013 44.00799124559484 2014 44.30865320283486 2015 42.755648730491494 2016 40.49944998678932 2017 41.731061834936426 2018 41.23800981001456 2019 38.12827265571167 2020 24.797571928852307 2021 32.37358927838759 2022 41.23348752629543