Year	% of GDP
1960	6.18299835937553
1961	6.379417427723551
1962	7.009783260987189
1963	7.718264469971759
1964	7.413714251016571
1965	7.99709968901826
1966	8.568680874536147
1967	7.858018406265345
1968	8.02138657114388
1969	8.240876427190912
1970	8.467155355698837
1971	9.166001900163861
1972	9.303808391620432
1973	8.262693758855802
1974	8.34102870104591
1975	8.590827687650926
1976	9.374948018920069
1977	9.043420619519779
1978	9.151535156088197
1979	9.565842953335261
1980	9.311233655232233
1981	9.131844187607568
1982	9.659001960174548
1983	9.749589861809064
1984	9.994398694743785
1985	10.426991591200617
1986	11.028079919280625
1987	11.384342567383468
1988	11.32793528928913
1989	11.432270677404045
1990	10.96142449080311
1991	10.743112561894417
1992	10.478954757771628
1993	10.587241947969876
1994	10.065608012257535
1995	10.154644739089422
1996	10.029892682182796
1997	10.466609580880199
1998	11.052581055077098
1999	11.16433384634338
2000	10.90717716963173
2001	10.59365452352549
2002	10.498726454733182
2003	10.21610603828461
2004	9.89389651567429
2005	9.83720299067834
2006	9.820454549023172
2007	9.715810535716773
2008	10.273442442597275
2009	11.11614713125268
2010	10.657580943057566
2011	10.609176924361925
2012	10.229873077358615
2013	9.87941780293162
2014	9.988216187218548
2015	9.94580805249265
2016	9.884756952561053
2017	10.285349814600933
2018	10.339988022246189
2019	10.473388531139975
2020	10.99797339145542
2021	10.011794663901542
2022	10.072562160551595
2023	9.903686257394998