Year	% of GDP
1960	14.883435553849989
1961	14.841329056664568
1962	17.2234110367201
1963	17.38647970178136
1964	19.624463580534464
1965	20.91885620105447
1966	22.989615258229108
1967	20.9925652913838
1968	17.736539461726007
1969	18.96940278687073
1970	18.59421363167614
1971	17.71517472827662
1972	12.848082840869443
1973	23.981710526408254
1974	31.4973276628354
1975	21.419205215544647
1976	17.32108813954226
1977	25.62536029148591
1978	12.339528480022995
1979	-5.7397379451738315
1980	16.77885309213129
1981	23.594018058692363
1982	18.7774691771266
1983	22.481706029450233
1984	22.228514927512897
1985	23.138605851800634
1986	16.89278248342656
1987	15.798693025194094
1988	26.751061206256878
1989	27.461681754305694
1990	19.275802476710535
1991	20.776379021424514
1992	20.924810352521195
1993	19.466021675426763
1994	17.531319764362955
1995	18.929084245239576
1996	22.17680296471515
1997	26.285600116647284
1998	25.824433382579564
1999	33.002682708900636
2000	26.654753194790455
2001	24.306907833163656
2002	22.432312225843454
2003	22.250508988893785
2004	24.11100277755689
2005	25.885213727366384
2006	28.251905956007338
2007	31.303897014260574
2008	33.60165733101663
2009	23.200881563590475
2010	24.840151401749246
2011	30.982927430172186
2012	31.011762428778233
2013	30.90461792294746
2014	28.87909650684332
2015	33.47674910197379
2016	31.200330298583605
2017	29.91527469344405
2018	24.07442553067243
2019	17.831075522926007
2020	19.41650153497845
2021	23.28303123259914
2022	21.78126647572636
2023	23.027067127584584