Year	% of GDP
1967	23.43237293917639
1969	32.93789762851521
1970	29.946786109169157
1971	26.421832812841163
1972	26.78756171309603
1973	29.037593820861773
1974	26.064105359589895
1975	26.794875235147636
1976	29.015181266764177
1977	28.350784085285294
1978	27.415995321897704
1979	27.476980483740185
1982	30.394147802749362
1983	31.622223303305635
1984	31.52210270865921
1985	31.934357787215557
1986	31.022329639562834
1987	30.927878889041022
1988	32.15098075797962
1989	33.6402648435808
1990	32.30550425884765
1991	34.373345257500375
1992	35.84167071015762
1999	54.447368541087435
2000	56.273437333004615
2001	66.3277110661949
2002	67.92127285618444
2003	73.16848859187675
2004	75.22696529672979
2005	90.95376869092058
2006	100.10131964655187
2007	101.60359315691267
2008	100.55905045143207
2009	103.50905657534753
2010	98.75105436080824
2011	94.31323767043601
2012	89.60792194884085
2013	87.94281163338786
2014	83.56054416869846
2015	82.27798431040341
2016	81.03368903102135
2017	77.00156341766282
2018	68.19036174885564
2019	63.35919694216599
2020	70.80263022708154
2021	64.35943579889305
2022	56.850783113931996
2023	55.10421099461373