Year	% of GDP
1970	26.446731551820324
1971	26.07912160992967
1972	26.6110947967443
1973	26.917683004544518
1974	25.860994449857195
1975	25.16137082501548
1976	22.90270455816943
1977	23.33809739643662
1978	24.034355230212455
1979	22.942690973611796
1980	21.066992502354754
1981	19.65167014239329
1982	19.797196584980554
1983	19.990482893985245
1984	21.642089146837236
1985	21.64451527329084
1986	22.625023773033618
1987	22.11559746916545
1988	23.046925899190477
1989	22.268473341374325
1990	22.40973190672994
1991	21.79586251343343
1992	20.216424038306222
1993	19.752683832258356
1994	20.563634533902356
1995	21.397648223575082
1996	22.046062677457005
1997	22.78438109030404
1998	23.469540084137748
1999	23.60425902642671
2000	23.684767022046735
2001	24.18512025084416
2002	24.693016628599484
2003	25.297594563399173
2004	24.585164473952133
2005	24.58341286041945
2006	24.870818859500133
2007	24.664098651931727
2008	23.719087442464946
2009	22.431856417565132
2010	21.27818448432893
2011	20.848628876920895
2012	20.500744832722983
2013	21.137735052323116
2014	20.99189624717221
2015	22.025949547905004
2016	22.728594246334417
2017	23.00480347391638
2018	23.182947504649633
2019	23.76932235954181
2020	21.90856203251088
2021	22.551440329218106
2022	22.6929752959238
2023	24.433866045917302