Year	% of GDP
1965	38.60265741173706
1966	31.97027438525763
1967	31.709932979919643
1968	33.33958211289499
1969	33.95394875880384
1970	37.182204170740256
1971	36.800012582653245
1972	38.00201340679079
1973	39.53918949251359
1974	38.342906380517704
1975	39.91030565904157
1976	37.86961565685454
1977	37.69158675410296
1978	38.78223232749357
1979	38.63047688936116
1980	37.79294901501865
1981	37.50164829736031
1982	36.957118778822526
1983	37.12514118873717
1984	37.31066231855981
1985	35.73653868745135
1986	35.35187612117471
1987	37.555745284926104
1988	38.530206812081445
1989	39.00543951709281
1990	36.6123063353015
1991	36.21703325179408
1992	37.81076725183762
1993	35.77838564378945
1994	36.54820537348636
1995	42.492659030245285
1996	43.91658220009342
1997	45.30393048340361
1998	44.518315532016516
1999	45.30942515951446
2000	40.90484842791446
2001	39.60656237848592
2002	41.424308789314345
2003	42.6484221998201
2004	43.37083943121252
2005	45.22956925080189
2006	47.09168272284385
2007	49.43603424154576
2008	49.12583251251219
2009	50.1960176933074
2010	49.944893627635096
2011	48.95850960017469
2012	47.7595116033518
2013	45.465925550809
2014	45.53121499545355
2015	47.3375467962079
2016	46.735092484695514
2017	47.160066464473665
2018	46.39769783152246
2019	49.19077340424817
2020	53.47867625715762
2021	51.91227859488727
2022	49.577129514046156
2023	50.86843985247707