Year	% of GDP
1960	13.056178687900907
1961	11.404515488591318
1962	11.351209103375352
1963	12.297863767077216
1964	12.249143746820357
1965	13.277504284654992
1966	14.340250135770557
1967	14.047704584914152
1968	13.699001448853354
1969	16.07994012464778
1970	14.35580478011157
1971	10.838030151476584
1972	9.55974936871196
1973	13.301874408480696
1974	19.53277872160958
1975	24.112815314161782
1976	23.941639173737222
1977	19.727487664518833
1978	19.818998655813346
1979	22.127960816169583
1980	21.6712812225843
1981	15.542869448877664
1982	18.61312243961247
1983	23.422974801901063
1984	22.800963736853134
1985	26.25105242619728
1986	27.320171665383413
1987	28.343942974509545
1988	32.473473611860804
1989	33.70002282682918
1990	32.494576817707696
1991	31.301016597424162
1992	28.961791931284942
1993	25.88068050875912
1994	27.46324068280119
1995	28.626252008683505
1996	25.950447502683403
1997	25.878004271704008
1998	25.1435814172359
1999	28.30911388628502
2000	30.12375387866055
2001	31.8473112672707
2002	32.25722035419739
2003	35.06097453042199
2004	39.68574951275808
2005	40.175572011767684
2006	43.86567420125268
2007	45.129851896141176
2008	41.16256079094571
2009	37.11563479541047
2010	37.90399431818343
2011	37.689780275730115
2012	33.845590505593606
2013	32.087463590049566
2014	33.00390296549522
2015	29.191079491078675
2016	27.92315810955579
2017	28.331376833546905
2018	28.529044739705135
2019	27.874667757051203
2020	31.330390242861206
2021	31.97358350208673
2022	35.51510707252803
2023	31.13673652501979