Year	% of GDP
1972	22.872117202395973
1973	23.70021249460594
1974	26.84172888467169
1975	26.378500966764662
1976	22.513347057695917
1977	22.504236051312574
1978	23.582148817030486
1979	24.64216040771231
1980	22.85624887156556
1981	23.36282212302404
1982	24.32975331995393
1983	25.83187219142733
1984	23.199161674142925
1985	25.154457228921256
1986	27.890804313727163
1987	26.727824139050725
1988	29.806773407537037
1989	31.347337600241342
1990	29.422060860574128
1991	30.66232147571069
1992	31.095794597205572
1993	30.321719679685543
1994	30.05907471078377
1995	30.24036830695297
1996	29.9155706366233
1997	27.207251063659804
1998	29.306318687669975
1999	29.88123604621035
2000	29.344553542916866
2001	29.572567393759492
2002	30.44270333165971
2003	31.939980987036815
2004	30.511964830527123
2005	33.30840013717582
2006	32.641447303640525
2007	32.36969752747769
2008	50.815276402490895
2009	41.65522591280195
2010	37.9621517564777
2011	38.45445823541932
2012	37.06907142179256
2013	34.65980352583385
2014	34.334243557637066
2015	32.2106446925694
2016	35.48875658544636
2017	31.450254662490888
2018	30.864744351570973
2019	31.070697133871832
2020	37.03409741229508
2021	35.254575891715795
2022	33.09327352350355