Year	% of GDP
1960	18.620689655172416
1961	14.772727272727273
1962	14.432989690721648
1963	12.017167381974248
1964	11.343283582089553
1965	11.475409836065573
1966	11.487179487179487
1967	13.178294573643413
1968	12.205683355886334
1969	12.130356065178033
1970	15.20754716981132
1971	11.43349612180408
1972	14.894166236448116
1973	9.505591524426132
1974	16.89074882022972
1975	20.278093793452157
1976	20.078772665719853
1977	22.658542325897642
1978	21.154580894708904
1979	21.167023459498832
1980	20.631425968504622
1981	19.031346437676103
1982	17.29079159808331
1983	23.603865560591807
1984	21.37545371381356
1985	21.100043453554836
1986	20.268650983941807
1987	19.20594968980435
1988	17.735925050881086
1989	17.69969273711578
1990	18.096348744396106
1991	17.861236442454867
1992	19.62546881282654
1993	19.558950912004747
1994	20.38202333060163
1995	19.100862030330294
1996	19.85845665770237
1997	20.248549358309024
1998	19.220104819467178
1999	18.28879586472788
2000	20.01563920537072
2001	19.50485337015855
2002	19.407394825380035
2003	24.32677944606645
2004	29.36439248313505
2005	28.473676505337558
2006	31.67407011451249
2007	30.11996058946958
2008	35.00507103537747
2009	26.295203513755755
2010	25.356042660257554
2011	26.82488458972072
2012	29.141524738948902
2013	26.36471004986945
2014	25.544962449235655
2015	22.85038955717927
2016	21.53885285564271
2017	20.44679477002491
2018	21.369805105167583
2019	21.68617771599713
2020	21.13111677120603
2021	24.841652761867447
2022	26.881452838931423
2023	24.235688025472616