Year	% of GDP
1960	6.319301770525813
1961	5.820800846628256
1962	5.577494974883841
1963	5.673855426724345
1964	5.72779665803116
1965	5.910357614290658
1966	5.938346811616455
1967	5.592293731835916
1968	5.589453985023795
1969	4.950190782906941
1970	4.833318193630741
1971	4.953420427891652
1972	5.6765760231781845
1973	8.09644384700675
1974	10.353957667487713
1975	9.991841703326203
1976	9.6079508427809
1977	9.335685192050462
1978	15.422444760814466
1979	16.545784524174692
1980	21.57917872646606
1981	23.78648108030812
1982	19.692968305180944
1983	17.92110271132078
1984	19.03261173985783
1985	20.71285501241546
1986	19.881479953363744
1987	24.857665077842015
1988	30.064770592508243
1989	25.10569520422544
1990	24.273132108191774
1991	25.949724106334365
1992	30.145716455195775
1993	36.05607786838125
1994	35.76999344945334
1995	34.27703883718212
1996	33.81464378876821
1997	34.5330881764594
1998	32.42414013395057
1999	33.524364246372365
2000	39.41103389480791
2001	38.5272103258233
2002	42.74718155599266
2003	51.80421957509308
2004	59.50553141376154
2005	62.20802192336096
2006	64.47919120013978
2007	62.19362508535685
2008	57.612342241476746
2009	45.18497620719122
2010	50.71707766274901
2011	50.74090458640058
2012	48.26752236738123
2013	46.744375577311786
2014	44.905215954336256
2015	39.46416933526189
2016	36.89441501700643
2017	37.63241324049504
2018	37.56578410207928
2019	35.89009603426131
2020	34.75429569954918
2021	37.3019908656257
2022	38.351480575294254
2023	37.31677357309846