Year	% of GDP
1976	17.913571331636547
1977	25.565375331940455
1978	25.416813279314866
1979	24.693697643353335
1980	27.365253273533714
1981	27.854951628504214
1982	25.76819241248317
1983	23.888964768165046
1984	24.262463045390433
1985	23.079553165877424
1986	23.61103152191942
1987	27.92473692017484
1988	30.32076070934067
1989	32.24600712546864
1990	33.646873609732836
1991	33.7342064877069
1992	33.66987438265519
1993	32.89510283168482
1994	32.69771383328556
1995	34.653943394777656
1996	36.45469817195847
1997	36.52341501127338
1998	38.68980150768752
1999	40.06753899698368
2000	38.77793941036869
2001	43.45964798326505
2002	39.56875382894782
2003	37.08896860718026
2004	37.18022648767965
2005	42.81944239652721
2006	42.513094544834544
2007	46.312588256968304
2008	44.681034872309176
2009	42.13264631229369
2010	46.72255259220454
2011	49.755487105181956
2012	50.145480549157604
2013	40.571055399834
2014	38.45514025920209
2015	39.75807668234453
2016	38.72423085988812
2017	38.132471025116594
2018	36.4128143697537
2019	35.37078527957474
2020	22.8522039560145
2021	23.02863558355625
2022	36.07226517787143
2023	37.02938019744148