Year	% of GDP
1960	9.985315712187958
1961	10.013908205841446
1962	10.709838107098381
1963	11.695278969957082
1964	10.934393638170974
1965	11.327762302692665
1966	12.844759653270291
1967	12.642045454545455
1968	13.396825396825395
1969	13.356164383561644
1970	14.707379134860052
1971	13.731958762886599
1972	16.810792113455552
1973	15.467032967032967
1974	17.89027833803953
1975	18.709277071051815
1976	20.32312925170068
1977	20.66647732651709
1978	15.146343005246854
1979	14.50271768474857
1980	18.164264137957403
1981	17.86988988735603
1982	16.95259335506376
1983	16.285291029642305
1984	16.1803146778439
1985	16.5132281916485
1986	18.847556642318906
1987	25.66650473288286
1988	25.142600667830017
1989	23.47258691233082
1990	24.549267516782418
1991	22.7120396231239
1992	23.36227144017385
1993	26.615609089025195
1994	21.320532926401572
1995	25.47355726752516
1996	24.551314950249964
1997	25.110786272015417
1998	23.880851675694537
1999	21.338908364180647
2000	23.718204188934426
2001	18.02543386362247
2002	21.107589539959
2003	22.30862357943232
2004	24.981714799994197
2005	26.80361430200669
2006	29.34869614324707
2007	28.60149787510412
2008	28.739013705056365
2009	22.816344126872238
2010	26.75251407955992
2011	31.003330554578312
2012	28.072859732262962
2013	29.619460782859914
2014	28.967463363677386
2015	28.19920217020074
2016	28.019603609623573
2017	30.694218101762665
2018	29.45823183555312
2019	24.87807476475343
2020	31.34060985214025
2021	31.404470860686022
2022	35.039937979357006
2023	29.406418464145155