Year	% of GDP
1960	21.914826703077022
1961	21.053787031568895
1962	19.840342888763747
1963	23.180558866488223
1964	20.2999653188584
1965	20.401225870018777
1966	20.359419704450897
1967	19.748471107562025
1968	20.606261119781735
1969	21.051980473265427
1970	21.460612153986876
1971	21.201120141249174
1972	21.99938914024641
1973	23.27490569226125
1974	27.722943755744193
1975	26.00904784210141
1976	25.601504575383004
1977	26.13377550227363
1978	25.778604754792088
1979	27.237246093817244
1980	28.432261200528874
1981	27.42892116491784
1982	26.04285067302858
1983	27.682171881232765
1984	28.458006351748907
1985	27.83421540085989
1986	26.842724986935817
1987	27.677830685868674
1988	31.073423725376752
1989	30.625217962639308
1990	31.371489250170633
1991	30.993997833604624
1992	32.11322591345324
1993	30.292080595093104
1994	30.834824130979946
1995	33.623650017669725
1996	34.61013253830328
1997	34.807483161435826
1998	34.66201444177103
1999	35.83557718513487
2000	37.819543226762285
2001	37.91281516261622
2002	40.47048303514895
2003	42.24482144220171
2004	44.477920255922136
2005	44.2819541004132
2006	44.812911557307345
2007	44.84335310069652
2008	46.36177183737872
2009	39.93859438559711
2010	42.477324912002345
2011	44.747681310891785
2012	44.72709170598847
2013	43.96603687090721
2014	43.12297098158725
2015	43.5347097688131
2016	43.520101494431785
2017	43.77415137186258
2018	47.367068772118465
2019	46.76914324797141
2020	46.63883006639343
2021	52.76038837974049
2022	56.115025037725864
2023	47.818815100398915