Year	% of GDP
1970	18.739678477661236
1971	9.863782164507057
1972	11.723508416138861
1973	18.382836399168482
1974	27.294477769247784
1975	10.746773622031345
1976	11.843557447078659
1977	10.11586034503857
1978	7.381010292733194
1979	10.379892177628342
1980	5.725341718157083
1981	3.5523544124621567
1982	4.88402680896845
1983	6.685371176221731
1984	8.890912708617932
1985	12.5518798764709
1986	11.993565857171646
1987	7.513094087192629
1988	9.153921063851103
1989	12.616106396866842
1990	11.614600179558721
1991	10.547289919523799
1992	14.649955701648215
1993	16.326999360874616
1994	18.493030044125163
1995	19.413205510622074
1996	20.32528963680214
1997	20.353145762833005
1998	18.82423810952038
1999	19.950404323897317
2000	22.877442021624702
2001	21.636180972197984
2002	22.034242084732465
2003	20.71815891594125
2004	22.24184229334251
2005	23.57134275614407
2006	29.601075872760376
2007	31.66839094187135
2008	30.776042795173026
2009	32.3174644846066
2010	31.747837373149334
2011	30.263792998498808
2012	30.636740928849655
2013	32.23315553808901
2014	32.13633164258676
2015	32.53892372219697
2016	33.75985810435612
2017	31.701015101158035
2018	32.57877043099165
2019	30.47493038333243
2020	33.96912358570459
2021	33.30415918218772
2022	34.04274271562897
2023	30.8405429041132