Year	% of GDP
1960	17.523226940840612
1961	18.835466512065853
1962	20.3126738423307
1963	19.039696584280772
1964	18.822604165733427
1965	19.421850239738674
1966	19.034385034057536
1967	16.64955364729185
1968	18.88713353959515
1969	22.52493338629051
1970	20.542000709155417
1971	21.26251487872985
1972	21.20854718981528
1973	22.044734639182902
1974	24.311464024260353
1975	25.697592133109897
1976	23.04211984044839
1977	22.04751885207468
1978	23.033126735639527
1979	23.137927724340436
1980	23.113506255859566
1981	23.58030274621099
1982	21.899856539331292
1983	17.882512766824775
1984	17.469225411165734
1985	20.299093219092033
1986	19.960839661515898
1987	23.17360166478652
1988	24.344226685934586
1989	26.902787038266386
1990	20.167708963328327
1991	19.768768868393988
1992	18.93453994234887
1993	20.846355206514534
1994	22.145562946480453
1995	17.29234634586235
1996	17.266946375954497
1997	17.763985611095624
1998	18.164751919474078
1999	17.38955974351785
2000	18.903119268387115
2001	18.741860295083622
2002	17.449079483495566
2003	16.85668840071522
2004	17.91256834225749
2005	17.204883450288804
2006	17.81647387491059
2007	19.819325981628275
2008	21.619382853471723
2009	18.796135028679114
2010	21.801321557436513
2011	21.82627111618684
2012	21.417225367411874
2013	21.69376695521567
2014	20.548410755373855
2015	17.41162586662935
2016	14.969546973774541
2017	14.625587598107897
2018	15.095041628944934
2019	15.516790799892435
2020	16.115820605217333
2021	19.521885019121978
2022	18.08822044423657
2023	16.085987349507384