Year % of GDP 1970 14.9398093382505 1971 14.2546718817904 1972 14.8668447333849 1973 15.8677420453967 1974 7.93813964578877 1975 11.3956664696635 1976 11.9775678879739 1977 17.2021366932142 1978 18.3920245870694 1979 15.4244647592356 1980 12.8993752540733 1981 14.2966663041308 1982 20.1642921325505 1983 25.7254698109841 1984 22.2893780596827 1985 28.7748917714708 1986 43.6650358487742 1987 44.1021428680526 1988 42.1536906263728 1989 44.6866954607046 1990 36.9718952853817 1991 53.2551085568327 1992 65.0797631309327 1993 42.0606511380197 1994 35.5914007945043 1995 34.6961722327483 1996 31.127184350048 1997 30.5500439929242 1998 38.7559583810254 1999 34.7629181352663 2000 26.848992977137 2001 34.8932847744361 2002 28.678248964304 2003 29.9881582480184 2004 28.9848665073759 2005 33.7215866396037 2006 35.9974581586654 2007 41.5768407593261 2008 40.8011854627094 2009 51.7351086840494 2010 44.7017959988135 2011 39.7530263246513 2012 37.1284423583344 2013 40.0053399938718 2014 46.096808613041 2015 70.8424801221283 2016 79.7605885769573 2017 80.0817007882657 2018 80.4368398170897 2019 100.636146762775 2020 138.857842947295 2021 123.316618339598 2022 101.057797744265