Year	% of GDP
1960	13.993699561396534
1961	13.924584884199394
1962	14.029076786768591
1963	13.866722373555936
1964	13.29735558777302
1965	12.783454902705957
1966	12.402530438953466
1967	13.068986312305048
1968	13.349854891036442
1969	12.515937214673537
1970	12.288131638472652
1971	12.176549195871447
1972	13.043214769433238
1973	16.740809585309595
1974	22.814345114879533
1975	20.300595934986227
1976	21.401628711008904
1977	21.560089331398945
1978	27.07233525072226
1979	31.28302805827701
1980	35.4861573319673
1981	35.80170952245897
1982	34.02860382711251
1983	33.43372261109929
1984	33.254133178383945
1985	30.627137164356
1986	30.98629014876316
1987	36.79163650846482
1988	41.026318158243946
1989	44.13488671018923
1990	46.71237152640626
1991	49.98777265497178
1992	51.74820875818695
1993	54.252663229702904
1994	54.50989009884936
1995	54.36809200925552
1996	49.664488747574566
1997	51.531650282325096
1998	51.218815544022505
1999	51.394141021281996
2000	58.5148896197652
2001	54.62223152671138
2002	56.54072340076799
2003	62.467989048706876
2004	69.7140964441893
2005	72.64398791162075
2006	72.53198504836125
2007	68.9835889722991
2008	64.2391962371622
2009	49.94979454153493
2010	54.79234124011014
2011	54.71016550792734
2012	51.820599752407375
2013	49.784961914190454
2014	47.459073023055986
2015	41.973993402402705
2016	39.06541633443001
2017	40.38784967772026
2018	40.51049020632393
2019	38.75961621380773
2020	38.01069499658967
2021	40.829355507586556
2022	43.2558398780293
2023	40.69935917028456