Year % of GDP 1960 5.43301937984522 1961 5.720285164370849 1962 3.813067243726103 1963 2.817994829012856 1964 2.1102761721663073 1965 1.1393572708519517 1966 -0.5712215034099577 1967 -0.281284751141994 1968 2.6327113630196366 1969 3.007901577343318 1970 2.307635277552478 1971 0.23883134702252512 1972 0.9478927035203674 1973 2.7877802042950357 1974 3.0532236791019725 1975 0.4173536754845864 1976 -1.3850780543971144 1977 -0.8509416207552002 1978 -1.9562638894795075 1979 -0.4832279208479351 1980 -6.349024511554938 1981 -12.351620134583564 1982 5.289153235558642 1983 -0.49192039235963925 1984 1.427765845562399 1985 -4.056005798506276 1986 -2.475127623168329 1987 -2.7561402150380228 1988 -2.646122386287597 1989 0.5076313191234975 1990 6.702780295513289 1991 5.138299982275461 1992 3.3586590384355075 1993 5.605103432365484 1994 10.055786212386488 1995 12.357512137595837 1996 14.030999634574878 1997 14.18549601141786 1998 12.747410888720909 1999 9.854356163330444 2000 9.870875901926697 2001 9.23271627885844 2002 10.518505868876584 2003 10.836156038273113 2004 12.34272168400286 2005 9.95739440709404 2006 9.214620727658648 2007 11.34878413506763 2008 10.246503737403586 2009 10.01901933663056 2010 10.321331145557663 2011 10.944841007911354 2012 12.333042780335957 2013 14.802808571661021 2014 16.850996134820413 2015 13.416455586029855 2016 16.49868740926422 2017 16.895014834169036 2018 19.139779772423537 2019 21.209522650740055 2020 20.545550986588847 2021 22.633369836271985 2022 28.898693377407405 2023 31.507507869993834