Year % of GDP 1965 19.985872495803672 1966 20.59213358255476 1967 20.031960671811206 1968 20.182615661038497 1969 21.416428443862966 1970 21.024255913504486 1971 22.19640509436735 1972 25.546798351623462 1973 26.556658727134963 1974 26.80289097525644 1975 28.718763746347065 1976 30.415069058197037 1977 27.244257389630057 1978 28.662259119637657 1979 28.24404466501581 1980 28.687842871715493 1981 32.98207653000427 1982 35.60496238600289 1983 38.26317516296187 1984 42.40453994466043 1985 52.7538302468871 1986 33.09044137345031 1987 33.36899234465655 1988 35.36616800481159 1989 38.40981938835446 1990 28.75414019626573 1991 31.348106722632934 1992 32.722133263494555 1993 38.007053244824924 1994 46.43380771166021 1995 44.742958834828336 1996 47.388960639738606 1997 49.133771806403075 1998 50.04366712770265 1999 52.77175267559827 2000 51.3195795218899 2001 62.27929425628788 2002 59.133946452553154 2003 57.66269689055782 2004 57.650424383217626 2005 55.90722242323248 2006 56.74735334334736 2007 62.63836867170044 2008 58.55818679083322 2009 61.153111946684454 2010 58.432079516894056 2011 52.043318478754955 2012 49.997088339556214 2013 49.79411605505171 2014 48.61804997928296 2015 50.11100964795138 2016 50.030391683542476 2017 53.84107140479735 2018 54.822355470132614 2019 59.06725985828726 2020 69.36547167591114 2021 60.86474506089906 2022 57.82923028839361 2023 59.21490619782911