Year	% of GDP
1960	7.46024831191462
1961	7.86501626310083
1962	9.16079196040198
1963	9.7535741158766
1964	8.98462696194367
1965	8.56915377616015
1966	9.43467336683417
1967	15.442514474772501
1968	17.4280147218013
1969	19.0893169877408
1970	23.4470563207999
1971	22.7998034775922
1972	20.3710188427547
1973	27.856092653734997
1974	27.655286442041298
1975	30.4638027862708
1976	29.245593098635702
1977	23.087213342599
1978	22.8911349757844
1979	19.3846931894808
1980	18.9193366304698
1981	20.2622686197897
1982	18.3882100800596
1983	15.5468886770799
1984	16.1822289156626
1985	16.6006435277983
1986	14.767712882713699
1987	16.9001449480308
1988	15.9470945572914
1989	12.4457326547219
1990	12.362686187267
1991	15.586982913660199
1992	10.925077527679
1993	11.523243990746899
1994	10.119965835375801
1995	7.91874390646774
1996	7.72965418733875
1997	7.4792678598744695
1998	6.98021666560999
1999	6.53012330164809
2000	6.29716498346273
2001	6.5080631231006105
2002	6.59401334001594
2003	6.486405973475989
2004	6.35803511317661
2005	6.264912690414739
2006	6.049564454839261
2007	6.367865558416
2008	6.39180109737032
2009	6.148111928525591
2010	5.93634502858407
2011	5.76961982715994
2012	5.64197274014679
2013	5.45718721425508
2014	5.6429116296547
2015	5.42397037752075
2016	5.41478205429478
2017	5.430061035647929
2018	5.28282858902518
2019	5.0528461529668
2020	5.27535024082769
2021	4.976052225861969
2022	4.51139144256367