Year	% of GDP
1960	13.866389990431937
1961	15.114478867097125
1962	15.457261658589161
1963	16.173414765685266
1964	16.572300817047893
1965	17.29974304017333
1966	16.115955466416214
1967	15.485468891489832
1968	15.487619452426172
1969	15.34374642400819
1970	14.890536912304874
1971	15.792179411052423
1972	16.529606283035854
1973	15.484403764137703
1974	15.680360435483557
1975	15.930755668242004
1976	18.184297823518705
1977	18.717203645405174
1978	19.008521133536053
1979	19.815751985372216
1980	19.495352628361196
1981	19.786915629710204
1982	20.76703940118037
1983	20.44628399449222
1984	20.48287318232448
1985	21.197501198644908
1986	22.192610477815848
1987	23.490806135632226
1988	22.62404962448864
1989	23.44244155436997
1990	24.708029847952613
1991	23.288491933791857
1992	23.93198099154764
1993	22.95609791884487
1994	22.756767603694776
1995	24.023288376452918
1996	23.68778370243433
1997	24.35966710762759
1998	24.357536896182665
1999	26.039562854503217
2000	24.491851533078986
2001	27.367248186988785
2002	26.058373499741183
2003	26.201855935194647
2004	28.165435305292007
2005	30.02827848883908
2006	31.081897527427515
2007	33.074610579331456
2008	31.943087186818637
2009	31.589312987399364
2010	31.048112418396638
2011	31.702035445828464
2012	30.87769007188771
2013	29.015855463382888
2014	28.145828581917403
2015	27.135598840353875
2016	27.030743278777646
2017	27.26205574519922
2018	28.396375636321686
2019	27.65285094401821
2020	26.577944217770224
2021	28.320819160961847
2022	29.390848951058647
2023	29.63041359024935