Year	% of GDP
1960	3.1659557018638185
1961	2.812990858402986
1962	2.3887723674754775
1963	2.387597774597453
1964	2.4805669160487107
1965	2.720795849930796
1966	2.8484095979774446
1967	2.6342261881284137
1968	2.6045405670431747
1969	2.171979983034349
1970	2.3774269518094484
1971	2.237588891181163
1972	2.5652808085331453
1973	3.7950560699717
1974	5.351448142018602
1975	5.112325762839283
1976	4.774486194115974
1977	4.607628551862769
1978	8.19957086480584
1979	8.713950641205287
1980	11.427046870883752
1981	11.344340832788356
1982	8.673338937761677
1983	8.403302178642875
1984	9.505919117708013
1985	12.37605328550311
1986	11.169302066508328
1987	12.375530559072825
1988	15.682449773541741
1989	13.261365820133634
1990	10.658421938570935
1991	11.46184595987329
1992	14.487496779057516
1993	19.353783318015232
1994	17.233152396790395
1995	16.32447946588445
1996	15.891402130342374
1997	15.039883741910968
1998	14.082133152106223
1999	15.361777788771233
2000	18.51732659779267
2001	18.215143109510215
2002	20.102553524135462
2003	24.823342431057977
2004	28.44419007828718
2005	28.378094173379846
2006	28.443993910527045
2007	26.758677504510963
2008	25.009839360332585
2009	20.435062301013122
2010	23.531744942364778
2011	24.172715241310367
2012	22.775000142884867
2013	22.145121140437578
2014	21.395155046950514
2015	18.110089452429825
2016	17.310034963404203
2017	17.94013625223609
2018	18.453680565700708
2019	17.48010371873389
2020	16.16815650143093
2021	17.358017034926064
2022	17.55999832664411
2023	17.573700079576337