Year	% of GDP
1970	28.670550161812297
1971	28.577653220214266
1972	28.292741509991547
1973	31.825271961380004
1974	27.93012302293994
1975	28.432916336588566
1976	30.668557958798644
1977	30.700477361203006
1978	29.372249924080133
1979	27.84817574661979
1980	28.60857229842855
1981	26.907417258124706
1982	24.95193168197592
1983	24.81380673336627
1984	24.761248987798023
1985	22.61980370761938
1986	23.932873302328197
1987	21.36639451465935
1988	21.636609725907398
1989	22.727837303103357
1990	21.968582801108738
1991	20.511565893796043
1992	19.755015017652326
1993	21.760076833840365
1994	22.820184030694353
1995	21.64134005776183
1996	21.25122387416329
1997	22.237264905453166
1998	21.51675595550912
1999	19.053999746385784
2000	18.052618891716214
2001	22.0475373023941
2002	21.40878012480044
2003	18.337035738833187
2004	19.232891615442053
2005	17.13694087196457
2006	19.34718272141162
2007	20.58415591920525
2008	23.93413255886898
2009	23.367953880371577
2010	23.75520117234144
2011	23.265533307550267
2012	21.78248989010301
2013	23.17562133633541
2014	23.596261599021524
2015	26.888863667072847
2016	27.718939162211015
2017	26.2269719469819
2018	25.566030102315036
2019	25.237391955207393
2020	19.97060675255497
2021	21.136592844753046
2022	24.11320015890343
2023	24.33716752293406