Year	% of GDP
1976	22.292427412847548
1977	23.742903487429036
1978	25.134498991257566
1979	26.23154237498449
1980	28.16104695412604
1981	31.13320739887298
1982	34.46317941810537
1983	32.65113319942172
1984	30.352317342704833
1985	34.24428599490834
1986	38.260051329827114
1987	33.78133120086231
1988	31.503565789091958
1989	32.53747255422763
1990	26.968522318000055
1991	27.783739776348554
1992	29.63309074525171
1993	28.80479089807752
1994	28.760284732395274
1995	27.197644879152787
1996	29.076811613761635
1997	29.163795850339973
1998	30.687636668768885
1999	26.565004392701002
2000	41.38436728733878
2001	40.96828508912916
2002	46.26219170983156
2003	43.56155613305413
2004	38.30646560226235
2005	34.0095353926169
2006	38.69853040164626
2007	35.240612036579016
2008	28.11733906533545
2009	29.598138112310806
2010	27.810251199023554
2011	28.375626283970234
2012	27.4115967343312
2013	26.481021078310125
2014	21.900733867948524
2015	22.290286209088663
2016	22.364411031225533
2017	21.595843198145122
2018	22.889540830153663
2019	22.184134422373255
2020	26.376764464301512
2021	25.84512335804337
2022	19.590304318909226
2023	21.338454666218322