Year	% of GDP
1960	9.712970181462099
1961	9.950154676881965
1962	9.8395841663401
1963	9.89410894783933
1964	9.53546329676686
1965	9.147398858871243
1966	9.465109708026565
1967	9.458236942830714
1968	9.657876317402557
1969	9.409254684123095
1970	9.521237238550166
1971	9.88820208398164
1972	10.484787725633359
1973	12.50163654265967
1974	16.147129212399822
1975	14.546744088246513
1976	15.604719845076845
1977	15.607471195336872
1978	15.55678481944379
1979	17.441005462226336
1980	17.761535447461657
1981	14.813288735021507
1982	15.159803108696101
1983	15.44983167347383
1984	15.681713623111381
1985	14.737600060964223
1986	13.429527575263013
1987	15.879376530980933
1988	17.04744466488713
1989	17.828486051046706
1990	17.557184639440653
1991	18.43885279870909
1992	19.052160230122954
1993	18.41020075533133
1994	19.39900520302156
1995	20.087285762539093
1996	19.899715235192286
1997	20.582368064817842
1998	20.118081835913415
1999	22.248240058791993
2000	24.37570304150163
2001	23.879357599705138
2002	25.586231059867824
2003	27.05511290202664
2004	29.356380104622083
2005	30.34587508134369
2006	31.20938702814266
2007	30.74023333221692
2008	30.88248766002345
2009	25.38282347702546
2010	26.58318045769882
2011	27.22864496302243
2012	26.732415070439913
2013	25.94497410075023
2014	24.97089131429248
2015	23.214335256339467
2016	22.181611624536632
2017	22.795834702087987
2018	23.60953779423134
2019	22.818117284869423
2020	21.866402436533974
2021	24.12186791129184
2022	25.80547374598933
2023	24.376530295303187