Year	% of GDP
1960	43.22296029613103
1961	41.92589505555957
1962	40.67604614482995
1963	39.72679159968583
1964	38.57224695725585
1965	33.84146341463415
1966	39.295392953929536
1967	41.26089489768012
1968	43.684210526315795
1969	38.703870387038705
1970	32.99492385786802
1971	32.98458149779736
1972	33.005507474429585
1973	33.07760401298318
1974	31.786487136330845
1975	27.546164096706647
1976	24.6676970633694
1977	22.60355029585799
1978	18.437468043767254
1979	14.471715055372645
1980	12.703899096476867
1981	12.370617696160267
1982	10.27223577819243
1983	7.971380798693471
1984	6.893020080072003
1985	5.921874631650912
1986	5.286789713019221
1987	6.244885588725564
1988	5.631953347946565
1989	4.696992862373362
1990	4.52615085751558
1991	4.376895524260577
1992	4.632785011259846
1993	4.52119256312185
1994	3.756143634232942
1995	4.637720943709871
1996	3.690994048985721
1997	3.5427056166042843
1998	3.166864256075874
1999	2.990765494018469
2000	2.794699789034537
2001	2.5902906202539144
2002	2.425615992561599
2003	2.722386955222662
2004	2.2595853495910205
2005	1.8283805240503284
2006	1.738935094243008
2007	1.9266843575501542
2008	2.1400702761033656
2009	2.3759841962596266
2010	2.0910409188325034
2011	2.1189230068096188
2012	2.314811082715796
2013	1.9935432232723445
2014	1.8195983525325894
2015	1.9477648675882884
2016	1.9758875736702912
2017	1.8419939490754045
2018	2.117310832047285
2019	2.0834294935165505
2020	2.2080632283028727
2021	1.7885200188045225
2022	1.5797269899313717
2023	1.5812873608415507