Year	% of GDP
1960	12.77533039647577
1961	13.212795549374132
1962	13.07596513075965
1963	12.875536480686694
1964	13.320079522862823
1965	14.670380687093779
1966	14.736012608353033
1967	14.985795454545455
1968	15.746031746031747
1969	16.095890410958905
1970	16.081424936386767
1971	16.61855670103093
1972	17.36423382912487
1973	17.554945054945055
1974	16.599435256151672
1975	16.568414520632953
1976	17.63848396501458
1977	17.286755656536968
1978	17.061761173272647
1979	19.16057737302473
1980	17.085993958628077
1981	19.43931147955955
1982	19.99961876441547
1983	19.103539530267945
1984	18.056925685658566
1985	18.254762006525052
1986	22.200774090482838
1987	21.839112763460243
1988	22.955554093844434
1989	23.121853883379618
1990	21.957806972061785
1991	22.17191762353938
1992	21.637088336223485
1993	20.80908452438612
1994	22.06291179021479
1995	22.566065140130068
1996	21.141422299977155
1997	21.565584646285433
1998	22.27165543686557
1999	19.996304067587882
2000	18.70562697131291
2001	17.714629848884627
2002	16.932615302128173
2003	17.111446983180148
2004	16.948235060958584
2005	16.903863698293026
2006	17.059373997263123
2007	16.804667861753266
2008	16.26460106733691
2009	15.157605905268627
2010	15.053968569843946
2011	16.448671031101387
2012	15.83374890043586
2013	16.27985573879155
2014	16.771697023289427
2015	16.696185445827666
2016	16.59545789523977
2017	17.591831045926604
2018	19.083755798069003
2019	18.377467707008876
2020	19.139192604714843
2021	22.238049569592217
2022	22.10864836712192
2023	19.40732795567533