Year % of GDP 1965 44.32056080080989 1966 42.76113027666455 1967 43.55344805657174 1968 44.18342207164067 1969 43.72499246937678 1970 42.50018306261235 1971 43.33657653344419 1972 42.90978609305219 1973 41.09585347930368 1974 40.00473120453527 1975 40.73097161064707 1976 40.409970719310856 1977 40.70703063846916 1978 42.20633300222554 1979 42.39336046005752 1980 44.21522992333744 1981 43.64649007807816 1982 42.333455251554966 1983 41.51545829001624 1984 41.96566886250852 1985 42.64781159222722 1986 43.34175213093196 1987 42.30629862071215 1988 42.849073569622306 1989 42.92678865794571 1990 43.69516556550112 1991 46.1762596565898 1992 48.24608471524686 1993 49.62573228061992 1994 47.96259074578462 1995 47.69784419077825 1996 47.716687705014884 1997 48.28419411759937 1998 49.17509018089668 1999 48.91915888506306 2000 48.924909628065606 2001 49.79110471334074 2002 49.16654193026297 2003 48.98275724636761 2004 48.30549652141766 2005 48.38863710143638 2006 48.362710366557714 2007 48.599693444739565 2008 48.17972845686096 2009 49.61226822435048 2010 49.021944591607486 2011 48.66907780951567 2012 49.37200718725342 2013 50.185711521803235 2014 51.05156745190662 2015 52.5625934937517 2016 53.2525071011904 2017 53.217582382457785 2018 53.24638483039732 2019 53.98685067729731 2020 53.725599399828525 2021 52.343026847539186 2022 52.127170258937774 2023 53.14068912409321