Year	% of GDP
1960	16.144643198152547
1961	17.335475661724654
1962	15.686762829253546
1963	15.134256216055725
1964	17.354830851355587
1965	16.85509511730438
1966	17.61438130542054
1967	18.161664702620474
1968	16.938767965064592
1969	16.061696145874944
1970	15.020352832497805
1971	15.9889178096841
1972	18.18930055053551
1973	18.6028818612765
1974	21.589182909405388
1975	18.36300780778079
1976	20.235208890655894
1977	19.958363946240663
1978	19.885702100263654
1979	22.57112239571885
1980	24.111447785603417
1981	23.84738163943129
1982	22.917906645440013
1983	20.111206367417495
1984	21.901383081850053
1985	23.21362939812819
1986	25.60179670054727
1987	28.89401098815474
1988	33.01196846877477
1989	34.921528047518656
1990	34.13192824488076
1991	35.96430951701818
1992	36.97247566801991
1993	36.81728956011259
1994	38.24211390885015
1995	41.53234506524305
1996	39.01842019711103
1997	48.237058707388684
1998	57.93730284440056
1999	56.438542861473465
2000	64.840250738685
2001	63.25068975665299
2002	60.64575260097013
2003	61.52255163318904
2004	65.97185733911854
2005	68.40271690088701
2006	68.67534203330126
2007	68.87227517024832
2008	71.4164181071068
2009	64.43861249176517
2010	66.48617315922391
2011	70.85490938016112
2012	68.95123562979806
2013	67.1711410731483
2014	68.39413516121776
2015	67.63669027058648
2016	67.07088396930105
2017	66.67283246637669
2018	64.83809689933204
2019	59.518890621885944
2020	51.49442660889195
2021	58.55223774294163
2022	65.3629024949052
2023	65.4461056849221