Year	% of GDP
1960	9.550736695009972
1961	8.956855480345071
1962	7.319363333484907
1963	4.600100822886597
1964	3.5610663418007635
1965	3.090116655040719
1966	3.301967525404753
1967	3.220989600058065
1968	2.9435224338836057
1969	3.3458196815707013
1970	5.19031071486697
1971	5.122334414228595
1972	6.404405771755236
1973	8.377540394216105
1974	9.206130896160648
1975	13.758557687591368
1976	12.469070799984301
1977	12.054513091332826
1978	13.428986787131619
1979	11.115621155960369
1980	8.966179587447863
1981	19.026065905235807
1982	13.960869707773456
1983	21.80857897914623
1984	23.52893170450717
1985	20.811339384284235
1986	24.834647638930182
1987	25.698238768273406
1988	32.37411823842148
1989	31.72880456284425
1990	30.3578497251069
1991	28.353524106446944
1992	28.69028403731265
1993	32.160308615516506
1994	32.34273101234073
1995	32.47284644194757
1996	23.632183908045977
1997	21.973991094777016
1998	24.512635379061372
1999	23.906868033081626
2000	20.42648709315376
2001	19.568798449612405
2002	17.164001230201446
2003	12.745984533016061
2004	10.305859402215564
2005	7.357908674029582
2006	5.984815950725948
2007	6.125387798816086
2008	7.271150656009652
2009	11.138252765475116
2010	9.226047107808435
2011	14.127481783724658
2012	9.30922134517349
2013	13.705838031211584
2014	22.407730336832387
2015	24.491039410543458
2016	21.332868370314227
2017	14.687409346042003
2018	12.75448292495264
2019	13.965064042476518
2020	15.42500832409099
2021	8.075997786565308
2022	8.23987915693718
2023	10.60057421049582