Year	% of GDP
1970	27.410685980259146
1971	27.61574910498877
1972	27.292909118766644
1973	26.940347607930093
1974	26.18836528982377
1975	24.63723518285523
1976	24.18311596841981
1977	24.512008749912017
1978	24.25237485182885
1979	24.408197462344113
1980	25.06481596106635
1981	24.210779736741237
1982	23.206574344848406
1983	22.661112834256734
1984	22.07990195030468
1985	22.03444518943861
1986	21.950354576692497
1987	22.342056617708796
1988	23.021593011000437
1989	23.690016842915814
1990	24.06455653287659
1991	23.65960805148249
1992	23.07034534049507
1993	21.649696735735994
1994	21.513539246228483
1995	21.499017927597123
1996	21.401626434947893
1997	21.38930570681507
1998	21.852543866371658
1999	22.372739704337825
2000	22.80009451537311
2001	22.355620471917582
2002	21.655048765444814
2003	21.55432741415283
2004	21.657286768016068
2005	22.02163099582338
2006	22.76336519427539
2007	23.43342891259278
2008	23.23689883209579
2009	21.269386651631287
2010	20.700586363241044
2011	20.80818097815844
2012	20.336619289935996
2013	19.766412843211143
2014	19.800099963257892
2015	20.226968431172963
2016	20.4490717165856
2017	20.76641258104322
2018	21.159381996950408
2019	22.211036796913255
2020	22.105855937625442
2021	21.941435766602023
2022	22.401146299732062
2023	22.24787400083839