Year	% of GDP
1960	9.811641112235005
1961	11.311375330054323
1962	10.523169563975108
1963	11.517809834774969
1964	10.608091728899566
1965	10.616621983914209
1966	11.69964344600165
1967	13.648157758173326
1968	13.24675264270613
1969	13.133827588072947
1970	14.924329454073224
1971	14.858415526566974
1972	13.608909830798888
1973	13.539553752535497
1974	14.704830053667262
1975	24.819422701930733
1976	28.746812730191706
1977	31.95474367476538
1978	24.897559560503318
1979	23.976919233434877
1980	26.119428573928396
1981	31.20308969001665
1982	30.872897818537165
1983	27.746529397529056
1984	25.279651771249917
1985	25.211086427958534
1986	23.481158335260112
1987	22.235848178972326
1988	22.512144474317623
1989	26.850780048738443
1990	25.785062132156746
1991	24.947024229845873
1992	24.806166286725528
1993	25.550491169427662
1994	23.57298071673362
1995	23.957303258858662
1996	21.813019060827088
1997	22.75862949170969
1998	21.782027586913923
1999	23.624273292254543
2000	24.36437542151109
2001	23.275731270731836
2002	23.621540128799317
2003	23.262156009765018
2004	24.614354360762093
2005	25.793613338022077
2006	26.385074746986486
2007	29.23124671185941
2008	31.26828599145156
2009	29.077358761419298
2010	28.331703859693675
2011	29.00323638477909
2012	29.954370776530176
2013	28.421322977750773
2014	27.015918853986303
2015	25.869778753551326
2016	28.68359943669128
2017	28.135469298760984
2018	27.858575328575004
2019	27.19270935833449
2020	26.225686065752292
2021	26.32877471019285
2022	27.126476704271223
2023	26.98778021510602