Year	% of GDP
1960	27.839748432660965
1961	29.470290118666355
1962	28.981900786350383
1963	27.69390921622734
1964	26.714218116146387
1965	27.09785522788204
1966	27.555647155812036
1967	28.420407368967304
1968	29.828209000302024
1969	29.632068834893666
1970	29.506767893711604
1971	30.314122085359756
1972	33.76671664167916
1973	35.855320642846
1974	35.437716159809185
1975	39.20304303644503
1976	39.801444895646426
1977	40.55645987821788
1978	43.0508213366211
1979	43.571377915316795
1980	35.026319843652345
1981	37.918930045778026
1982	36.368690405714396
1983	39.46402158577242
1984	38.487911473761145
1985	37.70517330608427
1986	37.526645828901806
1987	40.17309644144385
1988	39.90430229411628
1989	42.31010300673588
1990	46.15090679677681
1991	47.70328243557122
1992	50.9013961960403
1993	53.72425497148414
1994	53.176892731023685
1995	55.957266948857885
1996	52.84019287724121
1997	61.92703290682795
1998	54.84072200420004
1999	59.51867835544573
2000	64.05201712650008
2001	69.80252431141697
2002	73.52863895363015
2003	74.06519196156249
2004	76.04956245810983
2005	83.31918161946837
2006	89.97855451146644
2007	99.1055847307515
2008	101.36158392407357
2009	105.02313407094661
2010	105.04903245363639
2011	106.59696542750127
2012	107.52924005440805
2013	105.13636047850723
2014	108.46499061088576
2015	106.48534677947332
2016	109.88482281129887
2017	110.4624249173397
2018	110.49057795036299
2019	110.54028558240687
2020	128.86314720419324
2021	122.43948612165114
2022	126.68153882608833
2023	122.44632638946713