Year	% of GDP
1965	6.444127212497808
1966	4.834273995244637
1967	4.988308573837746
1968	5.687996495524983
1969	4.8465874119798045
1970	5.9648722627737225
1971	7.753412049522844
1972	7.329539692177079
1973	9.17845283665552
1974	8.760150248288188
1975	14.495202033615376
1976	15.13165468053153
1977	16.02430497685185
1978	18.279951113725883
1979	15.818140374440063
1980	18.286155979879062
1981	17.607207072232082
1982	17.14857376141923
1983	19.632700533175356
1984	18.662097659199997
1985	22.556132743742754
1986	20.264159069700668
1987	21.1887761493173
1988	22.292148857046264
1989	21.50690609282058
1990	18.125821923106674
1991	20.253471296677734
1992	20.704661773873323
1993	22.57089514008265
1994	22.403548918061745
1995	25.19949811794228
1996	27.205087721412703
1997	25.340715047074468
1998	24.83936911033921
1999	20.483516355003566
2000	24.314866346234925
2001	22.34304621699225
2002	20.246211173094377
2003	21.40937892981141
2004	24.53114956897917
2005	26.451158103330098
2006	26.851902813705884
2007	28.685250753269663
2008	30.31564699910992
2009	31.67437709456506
2010	38.27120644816201
2011	27.810311668492748
2012	28.602705242486827
2013	29.676609018288424
2014	30.986088225414715
2015	31.277434822879684
2016	28.240999200560484
2017	37.325054006922606
2018	39.5478003347409
2019	41.37874090983632
2020	30.440281509392918
2021	35.16359746483624
2022	37.64384825264016
2023	31.658684461697273