Year	% of GDP
1960	9.547574599742866
1961	8.95749302316734
1962	10.241499477094031
1963	9.23332167594574
1964	8.900053889917675
1965	8.979657186542292
1966	10.485699989086319
1967	10.107186569982746
1968	11.042165596063144
1969	8.502945502182003
1970	9.441228157246853
1971	10.580406117185513
1972	12.407912173492523
1973	17.8780376822995
1974	22.65205054626252
1975	16.070893640775825
1976	16.035635944762326
1977	16.302876828283594
1978	14.731982706412392
1979	17.908078493992004
1980	17.148026488978342
1981	14.61784583633482
1982	14.65649111710165
1983	15.559614963864584
1984	17.376420398750433
1985	19.681370973265423
1986	15.629403475043091
1987	15.36608706650605
1988	19.005851001446462
1989	20.283048968717612
1990	22.76437202193045
1991	23.674583589050226
1992	24.133740141312305
1993	20.035840832134483
1994	20.279818070142998
1995	21.28690337217639
1996	22.273284687976176
1997	21.534926210669813
1998	17.891950866825713
1999	26.377541640247614
2000	37.55105975607913
2001	27.607133722819444
2002	25.71441687956956
2003	26.841773515617916
2004	29.09968865701091
2005	32.62714880457483
2006	35.701685167780745
2007	37.48243310134813
2008	40.276300871460414
2009	29.309628834542544
2010	32.48569517991351
2011	36.11336943935132
2012	34.83141081771563
2013	32.37526650782838
2014	31.355036694031806
2015	22.754485726599025
2016	20.53929115588997
2017	21.485587391276937
2018	23.54387084609172
2019	24.048634822080324
2020	23.28356240711984
2021	27.00470956880284
2022	30.786596742823814
2023	29.065368819674152