Year	% of GDP
1969	20.421471161769425
1970	20.13189051558446
1971	18.817729087563983
1972	19.719478914803332
1973	20.529162413248997
1974	16.043431935000253
1975	25.759675375721276
1976	28.63796143017099
1977	31.58825525819176
1978	34.72966017927966
1979	28.90276485459783
1980	25.59097134114305
1981	29.533377372869253
1982	33.147730145810264
1983	33.64385113978419
1984	30.632836115186983
1985	28.66658134479641
1986	30.22687533196638
1987	26.89969091942157
1988	25.388107521704395
1989	26.54959318279344
1990	21.14960420576247
1991	23.798510271950022
1992	24.5810088662341
1993	25.402590204514187
1994	24.191815139282998
1995	23.128139472721767
1996	21.966401860707006
1997	21.620278820514187
1998	22.884821680554328
1999	21.018669663915567
2000	19.031693933148084
2001	20.194994995384942
2002	20.6848817636118
2003	20.85862928809921
2004	20.72754299653507
2005	20.737791141345895
2006	21.3029639669559
2007	23.34975047575302
2008	23.616631697929378
2009	25.99947778157364
2010	24.49168332822766
2011	22.523653451452294
2012	21.392438321949296
2013	21.968542747466955
2014	22.925794846819255
2015	25.510729797056896
2016	24.311250887974396
2017	22.818892212511123
2018	21.446521414992826
2019	22.58800386854604
2020	21.64671754137854
2021	21.213426234008097
2022	20.90779624873347