Year	% of GDP
1960	5.844737884326837
1961	4.846352286698583
1962	6.880232981434292
1963	6.345663939802715
1964	7.078783841535087
1965	7.6905753856547685
1966	7.32798048582173
1967	7.574410514109006
1968	10.479102956167177
1969	12.331572531491265
1970	12.127229888926287
1971	20.99069906990699
1972	21.0878534769045
1973	22.980211531900373
1974	26.783675701541508
1975	26.222771727050453
1976	28.370998355055043
1977	28.0966187787491
1978	30.059986481919566
1979	30.773441478140683
1980	30.2390072914972
1981	28.61425945273961
1982	32.33313980211433
1983	32.10409300913173
1984	28.317405554597208
1985	26.15407150772523
1986	31.36248854094608
1987	31.912906854255567
1988	27.9431667706732
1989	31.325784917321254
1990	27.292021797759443
1991	16.15000572063207
1992	17.849703784308804
1993	18.22886530816535
1994	18.63342685867089
1995	18.774698188873884
1996	20.530071033817254
1997	21.6603539496593
1998	22.76503993245975
1999	26.033070742708063
2000	28.61070702257125
2001	31.405564960629047
2002	32.40399200494799
2003	31.205290852920097
2004	19.29042950582866
2005	18.924890784672595
2006	17.970728487033572
2007	20.004791721884843
2008	19.758411483489816
2009	20.52876497825378
2010	21.737359258439014
2011	21.96961199249149
2012	21.52482246570218
2013	22.564816014323647
2014	24.162002394171907
2015	24.85676041119425
2016	25.627994051495385
2017	25.898488374705458
2018	25.85694003098854
2019	26.86126717308996
2020	28.97072303528756
2021	26.72181523832094
2022	26.865654150417413
2023	29.534006310577336