Year	% of GDP
1960	8.739664764981974
1961	7.369644892477482
1962	6.960509700567888
1963	6.864982078827206
1964	6.632263174365603
1965	6.827473749134949
1966	6.72966583734844
1967	6.252627139114926
1968	6.221921949429506
1969	5.452564424625421
1970	4.952342884590078
1971	4.921814403516627
1972	5.756038200908948
1973	8.000394363253756
1974	10.332967851257205
1975	9.554576787300544
1976	8.836601835307501
1977	8.384783927384614
1978	14.100504110791814
1979	16.398307452502575
1980	19.90068370492571
1981	22.47501559649304
1982	20.28673308735115
1983	18.907024585605566
1984	20.600007210263563
1985	22.48939980649821
1986	24.553287167882594
1987	30.278821583449506
1988	32.906292653794864
1989	32.1133581934154
1990	31.98932210718756
1991	35.3965687227091
1992	38.772290424027865
1993	44.00477495719593
1994	41.93014998521366
1995	38.239591449571655
1996	33.560779158992545
1997	33.81461419901129
1998	31.480065754040215
1999	32.96423424648809
2000	39.155007571158066
2001	38.05066885512209
2002	42.212965807481275
2003	51.25567502154197
2004	59.04604842827784
2005	62.201669528580375
2006	63.96668237412744
2007	61.30622637610521
2008	55.7917305487312
2009	43.27065175489809
2010	48.85669983407853
2011	48.22674910569151
2012	45.32389800511214
2013	43.45653365860291
2014	41.06223755479019
2015	35.73663651912026
2016	32.80917001403457
2017	33.36290882771662
2018	33.267172746153584
2019	32.05779479127999
2020	31.69931303536602
2021	33.64354323760177
2022	34.95703344971795
2023	33.36273523685726