Year	% of GDP
1960	9.533366783743102
1961	9.285051067780872
1962	8.78174773999139
1963	8.773322747121874
1964	9.040178571428571
1965	9.21180668180344
1966	8.247964276333072
1967	7.816039873130946
1968	7.851667702506733
1969	6.91315232043135
1970	6.475081847944707
1971	6.511627906976744
1972	6.699791633274563
1973	6.319045514803359
1974	7.087959009393681
1975	6.240601503759398
1976	7.082096933728982
1977	7.178487918939984
1978	6.233854520734194
1979	7.412140575079872
1980	7.735849056603773
1981	7.874015748031496
1982	7.868852459016394
1983	7.187323146576118
1984	7.75462962962963
1985	8.190148911798396
1986	9.31537598204265
1987	10.408163265306122
1988	10.077519379844961
1989	8.993733873940288
1990	8.084449021627188
1991	8.814996652532917
1992	11.155050255396276
1993	18.877761009740706
1994	16.321977913626505
1995	13.986384587955497
1996	14.783484740581196
1997	11.701734359862806
1998	8.387271008687042
1999	8.446622321932276
2000	9.539245695392298
2001	9.094867899505644
2002	6.704774504844546
2003	6.479723876483064
2004	5.224880585600673
2005	4.91937130026536
2006	9.991673605328891
2007	10.147624364222802
2008	8.929676221901422
2009	9.842075578116187
2010	9.472192112065372
2011	8.732355383337946
2012	8.38505537300718
2013	8.485954890760262
2014	9.38475771944027
2015	10.408157241193614
2016	10.766127190099091
2017	10.917757961673544
2018	10.032466985928828
2019	8.596078140211707
2020	8.136028415059101
2021	8.900155433908761
2022	8.058740320646459