Year	% of GDP
1970	35.89399205466047
1971	33.69064107034246
1972	30.538264712522434
1973	40.428184219227184
1974	38.213469896851315
1975	41.42261491228829
1976	38.05569404495964
1977	34.77039064856725
1978	36.24457997166082
1979	33.741834061748285
1980	36.413426625223934
1981	37.751376262728165
1982	33.864001307420274
1983	31.15371347030782
1984	33.93052137574743
1985	31.950333796775134
1986	27.00403383467681
1987	29.539053478673864
1988	27.8283983944992
1989	26.348848973574697
1990	26.894952761356066
1991	26.224507450901193
1992	24.91880758179369
1993	24.97538360940669
1994	24.750565307773492
1995	25.960090894264056
1996	25.97490246187005
1997	25.558238920341225
1998	25.023853892031166
1999	24.485365397236166
2000	23.263823350582115
2001	24.29059333309135
2002	25.343827719441514
2003	24.71986545790868
2004	23.557431493151608
2005	23.082767385679187
2006	22.558129820124226
2007	21.912082046656618
2008	21.88186535557393
2009	22.154939004267767
2010	22.01623439085054
2011	21.87970619001507
2012	22.11347414875616
2013	22.107814721515336
2014	21.979810762125105
2015	21.92171506186326
2016	21.90280653464346
2017	22.077485741649248
2018	22.348224167531512
2019	22.03634666986053
2020	23.23136890421727
2021	22.18077449913585
2022	20.892989825913848
2023	22.409892991579824