Year	% of GDP
1960	41.19333697433097
1961	40.94045489394327
1962	40.70942841389451
1963	40.076901950013735
1964	39.53113553113553
1965	38.39770470094902
1966	38.96454422770213
1967	39.577086949660725
1968	38.06222922410398
1969	37.1520819416611
1970	42.057096451774115
1971	43.134757235536334
1972	43.81863167551639
1973	41.14836127095322
1974	42.461559242666425
1975	42.30392341612332
1976	42.15016555797512
1977	40.613162157882556
1978	42.6907408544699
1979	40.88026382546931
1980	40.8115643083725
1981	41.68564224972071
1982	47.76451727823299
1983	47.902255639097746
1984	48.31645569620253
1985	48.84450402144772
1986	48.67573696145125
1987	50.221362135922334
1988	49.68344253246753
1989	49.74156194805195
1990	49.629436638830896
1991	48.66755351111111
1992	47.22070452911574
1993	47.28930412371134
1994	46.90685714285714
1995	47.67647058823529
1996	47.733653007846556
1997	48.151936818352766
1998	48.28789144050105
1999	47.55581924577373
2000	46.52599235518965
2001	46.45798717591302
2002	45.58878332013724
2003	44.904239520958086
2004	45.09107768390686
2005	45.929229340761374
2006	44.68999514327343
2007	46.89399838882922
2008	46.668297040759356
2009	46.5660621761658
2010	46.232720039781206
2011	45.71602363066151
2012	51.77163035170478
2013	52.30074227585465
2014	52.32099108450704
2015	53.170546998649705
2016	54.483281298442456
2017	53.16995052107553
2018	51.642245988170245
2019	50.76175211043602
2020	52.027108887075556
2021	52.47730499068016
2022	51.42884995710667
2023	51.64877208184808