Year	% of GDP
1960	5.01243663962303
1961	5.53633104967636
1962	6.68049504974799
1963	7.13637771142211
1964	7.35105145265308
1965	6.36213867626865
1966	5.72409858524698
1967	6.06656862746621
1968	6.35876876199007
1969	7.62722182451718
1970	8.02357544432656
1971	9.25057632418204
1972	10.0710763481558
1973	11.3280584182609
1974	12.3243537932305
1975	22.3656087715105
1976	19.2348025010507
1977	20.4046198232155
1978	21.5172811160149
1979	25.1699103989591
1980	28.6290731090899
1981	24.7977723988895
1982	30.2208354424658
1983	31.8399619420792
1984	25.4439357602281
1985	30.955511264498
1986	28.6602538046099
1987	26.5785988132497
1988	28.5622867545904
1989	21.5816821139048
1990	19.1276890376961
1991	15.3838102636286
1992	11.6744766178662
1993	10.5145447070759
1994	8.45262514060143
1995	7.42840515414758
1996	8.47764074613428
1997	5.41528298944634
1998	6.91321098678385
1999	7.14232695249229
2000	7.76142973832025
2001	5.13608000150082
2002	4.83318968885774
2003	7.67128464773378
2004	7.80447197593826
2005	9.03431033571312
2006	10.3350666644978
2007	12.3091832074478
2008	12.78056590883
2009	15.1297116490958
2010	15.8348376803157
2011	16.5743404440371
2012	15.6475924079483
2013	16.4539498482643
2014	16.7371091356356
2015	16.7357064364676
2016	17.4823722798533
2017	16.5779195095066
2018	16.7464154376754
2019	17.6107025365193
2020	15.5371207615124
2021	15.5860792794621
2022	17.1000283524023
2023	18.6083365072561