Year % of GDP 1960 3.67513558468332 1961 4.13183505124213 1962 4.09369670035275 1963 4.29322233804955 1964 4.05187880516919 1965 4.04198931187329 1966 4.01009788355343 1967 4.53885169273648 1968 4.37210980930992 1969 4.58118056129798 1970 5.95567632850242 1971 6.0345644983462 1972 7.90043010752688 1973 10.8726649528706 1974 13.9139016625398 1975 15.0162899911946 1976 14.4766780432309 1977 16.1466525871172 1978 20.8087661671115 1979 19.2696650009254 1980 16.5373753432577 1981 17.6675003379749 1982 17.6566408899742 1983 14.8108031534861 1984 14.3667657746944 1985 13.6069772071265 1986 11.560198446937 1987 12.6529894490035 1988 11.7960533554344 1989 13.3503527719277 1990 11.6306942586576 1991 10.3014880787741 1992 10.1478546579049 1993 10.8639150332441 1994 10.1792922181545 1995 12.4541321384602 1996 12.7900707440993 1997 15.6887662481946 1998 14.13565725352 1999 14.4624281629942 2000 9.01797134417478 2001 8.34335061835139 2002 9.82698046540635 2003 9.67396425603749 2004 8.28137380723943 2005 8.86270292207163 2006 8.47020352088079 2007 8.06216511098069 2008 8.68209202650165 2009 8.21108523727505 2010 7.79703967463653 2011 8.51878003547407 2012 10.814964045335 2013 10.7615276089025 2014 11.4152315549394 2015 10.7679267730686 2016 10.4552757071217 2017 9.82631897315958 2018 11.2063306533874 2019 10.3687008659048 2020 8.60933596942957 2021 8.33894411786975 2022 8.23905048963665 2023 5.16842520425464