Year	% of GDP
1969	8.462104488594555
1970	9.610778443113773
1971	12.47276688453159
1972	14.482909728308503
1973	14.629668019071875
1974	13.587971610011207
1975	15.795926438599961
1976	16.939618664614947
1977	16.46967234241769
1978	16.741405082212257
1979	16.28707213649166
1980	17.10091383783284
1981	18.17419068243656
1982	18.78284696625671
1983	20.086000086841363
1984	20.854680040618092
1985	24.737037693938397
1986	27.299677510266136
1987	27.539940504851508
1988	30.072312828278847
1989	35.317047552796396
1990	43.63738335722597
1991	44.10306080188103
1992	46.17281907924482
1993	43.68513396070907
1994	45.30561873184454
1995	48.585731443754995
1996	52.69392828709197
1997	55.99910020108466
1998	59.860413799164746
1999	58.38761021325567
2000	53.88268121219203
2001	50.885519260509184
2002	48.17116237961166
2003	47.0413453097139
2004	45.03288539271831
2005	43.354015149202795
2006	41.401722744256084
2007	41.75414767202515
2008	38.30992109199395
2009	38.1966839099246
2010	36.00171842384583
2011	36.7380019918479
2012	38.389288267771605
2013	39.07547413728605
2014	39.483850241851776
2015	39.46442005182082
2016	40.35709043701932
2017	39.876633927873335
2018	38.817581442137126
2019	38.76024384474401
2020	44.71787446748074
2021	46.36018203635685
2022	43.53677336544458
2023	42.24761570001311