Year	% of GDP
1975	24.433629102660447
1976	19.59709816569763
1977	20.217601937282257
1978	19.985451329918728
1979	22.661133759928664
1980	26.52302376621237
1981	25.90541712084387
1982	22.219708472921074
1983	19.473930351193516
1984	20.804996953854456
1985	22.007901960443792
1986	21.52094249355254
1987	21.274885591471485
1988	20.36000329170962
1989	21.720259579077215
1990	22.79240640347151
1991	27.168079288995077
1992	36.485230584227246
1993	32.44744788825727
1994	36.51952530049669
1995	40.92044899936097
1996	35.93954767477036
1997	44.609791422584465
1998	45.12095670828231
1999	33.51408004747031
2000	35.907656574684424
2001	32.938959477982706
2002	34.97255269550082
2003	38.054929123964456
2004	41.56980958241962
2005	42.49505909005801
2006	46.86448024866013
2007	46.387531129592475
2008	68.05478846991242
2009	42.30093974800806
2010	53.48329522007905
2011	54.665725206233084
2012	48.999281027875085
2013	36.66873535306128
2014	33.74146950153614
2015	37.58863531586339
2016	31.2754930936409
2017	30.37080746009205
2018	28.386297263742406
2019	28.2418045662371
2020	25.02030244585355
2021	28.07188764975484
2022	37.001395114205316