Year	% of GDP
1961	12.305794219401719
1962	11.80493182313206
1963	13.175194734515294
1964	13.694985424792867
1965	13.76263012419476
1966	12.61120310036029
1967	14.584279872785096
1968	12.890010758917485
1969	12.729192665834693
1970	15.118918730136555
1971	17.432534559309758
1972	16.48604836566569
1973	17.893316634407377
1974	17.976430658998773
1975	17.333166207069443
1976	16.827084479911942
1977	17.50860261304371
1978	21.7120303649749
1979	20.973264097502362
1980	21.811778081551548
1981	21.003079850361196
1982	20.437024362328785
1983	19.323011551383175
1984	18.9864033544518
1985	19.334084569632857
1986	19.31198823090715
1987	18.4164177260937
1988	18.926142832344848
1989	19.224478753738907
1990	18.656532352075594
1991	19.958072590222404
1992	22.152450240505292
1993	18.496196443499045
1994	19.834155886068864
1995	25.633790501870024
1996	21.514292192709863
1997	24.218454056987223
1998	23.811712204936438
1999	26.41727874141402
2000	25.61513776912811
2001	25.07090385318475
2002	25.701752508516257
2003	24.994713734623804
2004	27.131765187796873
2005	26.131320489501846
2006	22.767156254883755
2007	22.933190663160648
2008	25.28172085822103
2009	21.794438215856772
2010	23.903349145876454
2011	27.230606757767063
2012	26.35456012649881
2013	28.26072758491709
2014	34.461257981739
2015	36.64775444885963
2016	35.52533643421915
2017	33.109843162316835
2018	31.16268277957855
2019	30.798030387447916
2020	32.11887363634517
2021	31.095615122970283
2022	31.514049825790856
2023	31.790723753352246