Year % of GDP 1975 60.40844812115588 1976 64.80373311779677 1977 61.10529589497183 1978 68.35672180681016 1979 76.13290810650449 1980 61.237721021611 1981 58.6702365015618 1982 56.50149508756942 1983 58.95414320193081 1984 57.10963455149501 1985 51.06172839506172 1986 46.0873755220045 1987 38.64060676779463 1988 38.41195831047723 1989 41.04337050805452 1990 43.372868791697556 1991 41.414862204724415 1992 34.58865610628513 1993 37.797590361445785 1994 38.16501039981512 1995 45.037003812514016 1996 45.42490534286917 1997 49.265671641791045 1998 45.65125308859866 1999 46.50496883948122 2000 47.342703056054916 2001 45.39040759535112 2002 44.48575567358764 2003 47.13350989250662 2004 50.35999419364203 2005 52.80141379761749 2006 50.54983452300576 2007 47.396492377257516 2008 50.7994054121125 2009 45.787713897632884 2010 47.946173267447634 2011 48.6118193565103 2012 47.807686593400774 2013 51.09564649495669 2014 49.58467752286042 2015 47.15209474883297 2016 41.976516138578845 2017 40.53981517452262 2018 39.697015715712745 2019 38.68558189542035 2020 35.53836439640425 2021 39.6410048701023 2022 42.17814547660829