Year	% of GDP
1960	9.307258372814657
1961	11.699998968188812
1962	10.808096992368224
1963	11.656277940975125
1964	14.121855393909378
1965	13.366597304248499
1966	12.651822147551878
1967	12.595717986019844
1968	11.606331446800986
1969	11.66532875746029
1970	12.507484061231514
1971	10.72758452003514
1972	13.732559153115387
1973	11.855247176974187
1974	10.348545600696982
1975	8.100547238524758
1976	17.636193161471454
1977	12.381446232892095
1978	15.48085180017979
1979	15.797844062270267
1980	17.882947321183714
1981	14.116295938104448
1982	15.531624327607615
1983	14.713031590067663
1984	13.415472040353388
1985	12.837706024628867
1986	11.835810544976354
1987	11.697747992337092
1988	12.249763344648574
1989	12.785030301127945
1990	13.058185525929588
1991	12.227214916441781
1992	12.347328592079949
1993	14.104314034148452
1994	13.864320908288006
1995	17.344861862558833
1996	16.369580073857467
1997	15.805142832732697
1998	16.12273217412073
1999	16.629298171384484
2000	16.9775131339119
2001	18.71145786494678
2002	16.557411788962977
2003	16.226736204216692
2004	15.711725203107797
2005	20.00409296653672
2006	21.75846086730336
2007	22.947047806683052
2008	24.962055550483218
2009	23.15266331740966
2010	21.778729985140533
2011	27.49877488019595
2012	27.94933388498424
2013	26.758528612937553
2014	25.524420201798886
2015	24.749322520489645
2016	17.412945653168283
2017	17.179983781834
2018	19.839843779749238
2019	18.483297155936523
2020	15.828659314611269
2021	17.061225803249734
2022	20.897740835674973
2023	17.825807576339198