Year	% of GDP
1960	15.839404612418035
1961	15.789976400971675
1962	15.705964694639132
1963	15.669009198875786
1964	11.51843945682523
1965	11.376620581493698
1966	11.648488336478458
1967	13.92730705281451
1968	15.287390677235486
1969	16.532394624292564
1970	16.141770188984133
1971	19.931089097609448
1972	21.288999666034062
1973	22.9195387310593
1974	24.472915720865604
1975	30.15111635902012
1976	27.008243232927416
1977	30.443266892601585
1978	27.750829268411525
1979	29.282443678317154
1980	31.26250765861546
1981	31.435113645201497
1982	31.624035315048292
1983	29.574147847706396
1984	28.75779203823222
1985	31.02608228875582
1986	28.971166289221916
1987	28.08112952658222
1988	27.130982089993566
1989	23.645897351923075
1990	24.45595902822319
1991	23.34868798392878
1992	19.527536008576423
1993	20.673540672075784
1994	25.027601093221453
1995	26.60691487834924
1996	27.61669256362343
1997	26.60388778188341
1998	28.131680553250533
1999	26.900810275751375
2000	26.278224485158624
2001	22.61408804743179
2002	22.447157220604822
2003	21.14780474932657
2004	24.59935630045111
2005	24.330322290014216
2006	24.149678852752857
2007	23.431175072708086
2008	25.235989927765395
2009	26.507012812169023
2010	28.557389684403116
2011	31.301752584223745
2012	34.640522563874086
2013	36.95886584939084
2014	31.891558339588567
2015	32.98153577446378
2016	31.97720799518956
2017	32.81639456696673
2018	32.51671948172694
2019	31.15099722135936
2020	28.962912952296488
2021	29.705252454831143
2022	33.0990299075644
2023	35.960030971978505