Year	% of GDP
1970	10.758285404960203
1971	10.757179035927372
1972	11.340619649600113
1973	13.079215589430436
1974	16.444986322539563
1975	15.516373633156547
1976	16.048845635663696
1977	16.417894675155367
1978	16.97283422896506
1979	18.376163204283582
1980	20.109844689422594
1981	19.425913170427194
1982	17.536812280918443
1983	16.66559348031033
1984	17.522407422405266
1985	16.603906126302988
1986	16.897977151434254
1987	17.9735809845702
1988	19.070100705861503
1989	19.41511066048873
1990	19.81506735373152
1991	19.786448124097433
1992	19.95059450239229
1993	20.044618701975153
1994	21.055459161745276
1995	22.453381649056794
1996	22.687071990241197
1997	23.428327802617808
1998	22.825893979763688
1999	23.31356972962377
2000	25.102985556853646
2001	22.967183015497458
2002	22.286384213606453
2003	22.6272972866813
2004	24.448056657190406
2005	25.638557343676915
2006	26.975285805890348
2007	28.012015563109827
2008	29.867787525706063
2009	24.759527635837024
2010	28.219882940833628
2011	30.842478575913994
2012	30.681839575193017
2013	29.941306284822716
2014	29.906569337427957
2015	27.68821393407681
2016	26.452597786546526
2017	27.125338222287443
2018	27.44535913026185
2019	26.278054930918742
2020	23.10475332915943
2021	25.25348466313365
2022	27.040016301982572