Year	% of GDP
1968	47.73368608756199
1969	48.19018423234473
1970	50.801719150343004
1971	53.98455191239879
1972	61.583782704214094
1973	99.70399249151686
1974	62.93606093687971
1975	73.33373852792803
1976	59.72957422324511
1977	57.420627788972965
1978	49.31671009378058
1979	54.85638589341859
1980	63.45580135225739
1981	62.818692680234925
1982	50.7317249597399
1983	38.46865701071954
1984	34.521940041465236
1985	30.071110071800977
1986	26.702999813676172
1987	30.861774026192546
1988	31.323766561075157
1989	33.74567655748953
1990	40.33482776232904
1991	38.308399437775655
1992	39.10680685789082
1993	34.35281596096112
1994	34.000948185607335
1995	37.337841362095304
1996	40.02282094478038
1997	39.158597920628644
1998	29.632381796776208
1999	34.666470988838114
2000	43.40526903069028
2001	39.633694222871014
2002	40.94880327191001
2003	45.85414918711594
2004	50.98533108381781
2005	57.05074298955696
2006	59.83190824454424
2007	59.93744013928421
2008	62.11150203310216
2009	47.08862065343912
2010	49.569739551701176
2011	55.6022747873791
2012	53.84104672391934
2013	51.42090957455841
2014	46.248189421630656
2015	32.5639317986462
2016	30.15915915915916
2017	33.56575153940542
2018	37.19850983828652
2019	34.08919620761568
2020	24.901970824948602
2021	32.77465349434197
2022	40.221276968340995
2023	34.749200436824765