Year	% of GDP
1960	9.783442869245198
1961	10.114238888663406
1962	9.312696747114375
1963	9.898637947418436
1964	12.262336406922977
1965	13.136548981264006
1966	12.029912993456533
1967	13.188854489164086
1968	13.716237193418193
1969	13.466247724510186
1970	12.531512605042018
1971	13.28093510681177
1972	12.96816256603055
1973	13.879806403557279
1974	14.799937207019997
1975	15.655942291340958
1976	20.621720357284936
1977	18.95082496302071
1978	20.058972093072445
1979	18.630660370565863
1980	16.424029344942696
1981	16.764450185380767
1982	15.016633532750953
1983	10.497237105094491
1984	9.634635589919371
1985	10.956269832076046
1986	10.05935086463347
1987	12.355598494847236
1988	13.371623656508843
1989	13.742685236336566
1990	12.981929850097876
1991	12.176991325853415
1992	15.643112963920064
1993	16.086512435736484
1994	14.225262516728387
1995	14.514736616181183
1996	13.32993917512917
1997	15.112553901387832
1998	16.646300582763452
1999	17.891828902665203
2000	16.12561254356405
2001	18.60193667502229
2002	19.619797505880335
2003	18.961591893320602
2004	18.640258708372663
2005	18.589891572208696
2006	20.43683642073367
2007	19.905884672847492
2008	18.22684543198258
2009	15.377603213331954
2010	15.048839014111417
2011	15.045916336494553
2012	15.026924890826173
2013	15.090567710460167
2014	15.171777582409094
2015	14.516580771239957
2016	13.87171704924787
2017	13.609429344142152
2018	13.695895256103002
2019	14.379292633073742
2020	13.703215315335976
2021	16.201637494086963
2022	16.76099844791991
2023	16.55491135721474