Year	% of GDP
1963	11.728395061728394
1964	21.354166666666625
1965	23.678160919540282
1966	16.384180790960503
1967	12.631578947368363
1968	10.851419031719537
1969	13.218390804597735
1970	14.382632293080096
1971	18.070818070818138
1972	20.091324200913235
1973	21.681415929203503
1974	16.908951798010698
1975	28.52689010132497
1976	26.999266324284697
1977	38.862559241706336
1978	49.20550847457631
1979	50.70488721804512
1980	34.77348993288602
1981	30.65891472868229
1982	25.361512791991093
1983	21.812080536912774
1984	15.041427660930525
1985	27.4452554744525
1986	28.3614589003811
1987	24.107618540223836
1988	22.42174229555927
1989	16.960148285449485
1990	36.14051413283709
1991	37.42543884565129
1992	36.629232945523746
1993	7.836230396148281
1994	33.263832265579474
1995	37.724169053879116
1996	27.362539193189683
1997	26.190386456315306
1998	20.966038925222616
1999	20.40002713070219
2000	29.497470308709218
2001	29.320566922560193
2002	30.66906715793001
2003	32.09516004293968
2004	35.56416487910969
2005	25.11140806847542
2006	19.02382228677812
2007	18.78424978704834
2008	17.086260667938042
2009	14.491544730261536
2010	15.840415978895988
2011	19.904368704991775
2012	17.696245985113208
2013	22.114690157376444
2014	22.376827509333665
2015	25.18503055566429
2016	20.15726233458687
2017	16.83625872900321
2018	19.13584673701465
2019	18.601449805960314
2020	21.330907383495713
2021	19.86411674805395
2022	21.419250008340217
2023	22.954479679166496