Year	% of GDP
1960	5.012436639623027
1961	5.5363310496763605
1962	6.680495049747989
1963	7.136377711422109
1964	7.351051452653075
1965	6.362138676268654
1966	5.724098585246978
1967	6.066568627466207
1968	6.050547344482666
1969	7.30040734865726
1970	8.023575444326555
1971	9.250576324182038
1972	10.071076348155811
1973	11.328058418260882
1974	12.324353793230454
1975	22.3656087715105
1976	19.234802501050677
1977	20.40461982321547
1978	21.517281116014864
1979	25.169910398959082
1980	28.629073109089937
1981	24.797772398889485
1982	30.220835442465805
1983	31.83996194207921
1984	25.443935760228108
1985	30.955511264497993
1986	28.660253804609898
1987	26.57859881324971
1988	28.5622867545904
1989	21.581682113904815
1990	19.12768903769605
1991	15.383810263628625
1992	11.674476617866235
1993	10.514544707075855
1994	8.452625140601434
1995	7.4284051541475815
1996	8.47764074613428
1997	5.41528298944634
1998	6.9132109867838505
1999	7.142326952492292
2000	7.7614297383202535
2001	5.13608000150082
2002	4.833189688857743
2003	7.671284647733784
2004	7.744548151733553
2005	8.97964392554993
2006	10.278648138292315
2007	12.240878394151993
2008	12.676766547017754
2009	15.021831346817082
2010	15.727397890903372
2011	16.4522633117944
2012	15.533897842374888
2013	16.347347621710526
2014	16.632482381726312
2015	16.641873979786016
2016	17.395089474049673
2017	16.51829246825458
2018	16.696116167493464
2019	17.5628620818268
2020	15.492844698584612
2021	15.550199699284589
2022	17.07184689995537
2023	18.5840493961309