Year	% of GDP
1960	14.037199783302235
1961	14.999430977580516
1962	12.60962446593209
1963	13.810316139767053
1964	13.740529857418474
1965	15.241667744578105
1966	15.10540562710196
1967	13.869982708509621
1968	14.461296175836214
1969	13.311757701584586
1970	13.198753556428668
1971	12.914891508966612
1972	11.953666913596875
1973	11.00160578081092
1974	13.193731155362645
1975	14.711950038593782
1976	13.362048279502808
1977	14.630520877727307
1978	14.570998876810904
1979	15.335449806738469
1980	15.886399429471371
1981	16.716549180220273
1982	16.806268729706524
1983	15.602496145967521
1984	14.983667624458317
1985	17.26703327034544
1986	18.036777361644056
1987	17.053776283119088
1988	16.612646808720406
1989	16.94766139433847
1990	17.03826338353575
1991	16.16123432236752
1992	16.38666480812529
1993	17.860254242820577
1994	18.48691951111311
1995	19.833375685192582
1996	19.342910454109788
1997	18.853349860328922
1998	20.435136786368883
1999	20.735051229722405
2000	21.544982902603692
2001	22.066378099015836
2002	20.722430946822374
2003	21.14435418399518
2004	19.847145375071317
2005	20.936374186604887
2006	21.705907951799997
2007	21.824516102965685
2008	22.69789908522086
2009	22.729877972889735
2010	20.715266475055984
2011	20.40156458494725
2012	21.6576317984718
2013	21.27607816864994
2014	21.360696882843293
2015	21.536153940370507
2016	21.532415958180422
2017	20.713684040609806
2018	21.49352029353851
2019	21.637174994179613
2020	20.17567285666921
2021	17.725540846598285
2022	19.70962030600616
2023	21.360691043515065