Year	% of GDP
1960	20.790041880930453
1961	22.666476531057693
1962	20.482698764548424
1963	23.438401361200047
1964	22.076617522343643
1965	28.824257288277984
1966	29.40465694553982
1967	24.85992522542901
1968	25.9768068556892
1969	28.336090252455342
1970	28.183410618530587
1971	27.141795383946643
1972	29.438250534771598
1973	30.35076653431929
1974	28.470051501556227
1975	38.67513508243972
1976	40.09270251793233
1977	34.225159735675554
1978	32.36248534775859
1979	32.57496839971094
1980	33.99999728716974
1981	35.19240715851081
1982	38.446452794767104
1983	38.174939240572904
1984	42.63116720192012
1985	42.33621671660443
1986	43.43342779360067
1987	46.08851090414811
1988	47.29093274170843
1989	48.38199222102485
1990	40.712324581116
1991	40.728814569565
1992	40.919804129830375
1993	41.97591652273303
1994	43.63775339468913
1995	45.22012399635259
1996	43.15380987863989
1997	45.36975613204478
1998	41.39045627420314
1999	42.66443570247807
2000	40.36312829319061
2001	37.36994136385357
2002	36.16589120248036
2003	35.9778240858115
2004	38.38354921899623
2005	37.91946056924289
2006	37.44395319225143
2007	37.36358203057505
2008	34.28412359243317
2009	36.90875736444802
2010	35.10755079960615
2011	36.67227076021935
2012	34.95504599446912
2013	35.98460699677015
2014	37.06895913199536
2015	38.530528804502744
2016	38.2723746369935
2017	37.81503245578519
2018	36.76228638403272
2019	36.54049277256886
2020	36.092920569066436
2021	37.05371985406345
2022	34.46966560546141
2023	26.933934522642616