Year	% of GDP
1965	15.703753351206434
1966	16.536136301181642
1967	16.06772184743124
1968	16.109936575052856
1969	16.65674549488609
1970	16.207981619299737
1971	16.290168628698694
1972	16.80017134289998
1973	17.346699953190825
1974	16.013714967203338
1975	17.096481832413282
1976	16.606856171498723
1977	16.561162356061978
1978	16.983355694963194
1979	16.82059216994665
1980	17.964196962126408
1981	19.144976137505022
1982	18.909286802489
1983	19.970905020038053
1984	20.15922169002081
1985	20.118539255410028
1986	18.953088964590943
1987	19.645472970787335
1988	19.183366878924588
1989	18.76889256078477
1990	19.283597591207126
1991	18.350084003306023
1992	18.86594312395901
1993	19.06004046899043
1994	18.076201238446625
1995	18.875005309146562
1996	18.290985324814287
1997	19.059177335795184
1998	16.19671659538114
1999	16.567435071288656
2000	16.70681407112128
2001	15.161418122631302
2002	15.117838081858515
2003	15.716316704234476
2004	16.035441631918506
2005	15.248445114292778
2006	14.615025150462923
2007	13.743807347166465
2008	13.712164175366718
2009	14.233715880059785
2010	14.408726066602618
2011	14.267434056723685
2012	13.9964802210853
2013	14.318386542694187
2014	15.193209074006395
2015	14.894181440082216
2016	14.747283296580576
2017	14.582359571588352
2018	14.858810428392024
2019	14.749450733806729
2020	15.158306846904537
2021	15.053968418335847
2022	15.016787479382149
2023	14.532344704619923