Year	% of GDP
1961	18.680256020704306
1962	21.470754293397473
1963	20.404212177701414
1964	15.625993042624959
1965	14.933041479414925
1966	14.54075518632219
1967	16.09108314086158
1968	15.155867516575114
1969	16.234612926356597
1970	17.239602425719454
1971	16.994871736985026
1972	33.98434402860746
1973	32.004900342520024
1974	40.947781512493805
1975	41.71396738325836
1976	53.79846631568756
1977	50.8140457623617
1978	44.785885534932135
1979	41.29250155818662
1980	46.036529239671644
1981	51.76129403321554
1982	58.50055551910569
1983	52.69888895434855
1984	50.5128548942531
1985	55.79657448040712
1986	54.777838575632444
1987	45.9869532609375
1988	43.530958222401786
1989	39.18805575886561
1990	41.94458065575536
1991	28.27621925173428
1992	19.955956579945177
1993	20.715369437856896
1994	27.986255365331207
1995	31.93047704945468
1996	31.292476286069583
1997	29.35750949932942
1998	26.93184399121894
1999	26.447752001457836
2000	33.423259052982445
2001	35.164217379955545
2002	32.01192119733825
2003	36.193252157770964
2004	51.949547110100205
2005	61.481852505961655
2006	40.424397885635585
2007	45.54089387962468
2008	52.51736052197399
2009	44.76286929890275
2010	47.681397020749166
2011	48.30251990437064
2012	62.52676753380653
2013	56.8502249539329
2014	54.22117064166123
2015	47.151641739161704
2016	39.2281211248166
2017	44.30930265329373
2018	52.56047909222106
2019	51.08917009447104
2020	45.37006384872913
2021	48.450850492821004
2022	55.012459045061554
2023	52.17279246043618