Year	% of GDP
1960	24.395857307249713
1961	20.107526881720432
1962	17.1225937183384
1963	18.72727272727273
1964	19.498381877022652
1965	17.871759890859483
1966	12.845849802371543
1967	10.305851063829788
1968	11.117647058823529
1969	11.794102948525737
1970	14.165559982293049
1971	14.12
1972	7.104795737122557
1973	9.025992573550415
1974	13.047210300429185
1975	12.720045428733673
1983	3.749769069431313
1984	6.876822601927107
1985	9.570089316946898
1986	9.362075742139607
1987	10.434048257372654
1988	11.295990471805448
1989	13.209014305531838
1990	14.443997290699508
1991	15.878986409637125
1992	12.8
1993	22.21017019188554
1994	23.957732949087415
1995	20.021414657429982
1996	21.199996472258725
1997	24.80621253560446
1998	23.109389454209065
1999	21.0005345047085
2000	23.998600497191788
2001	26.599421602439673
2002	19.7
2003	22.936927976637637
2004	28.377506684052694
2005	29.002140636309797
2006	22.465805737650008
2007	15.384544987774746
2008	16.49196394080335
2009	16.431793108136734
2010	13.100193707280525
2011	12.80999296631766
2012	16.967722122964993
2013	24.771538053084306
2014	27.165066337446486
2015	27.70964117057431
2016	25.455655453713412
2017	19.56551995552145
2018	21.709334999906478
2019	18.647275616147223
2020	18.223666985781918
2021	17.03667791582622
2022	15.521681405079807
2023	10.847597300110873