Year	% of GDP
1970	13.620496998823262
1971	13.856015204488873
1972	16.93019088434925
1973	17.229848572221425
1974	11.432748435745788
1975	14.366297518638957
1976	14.560336908969191
1977	15.97362227848299
1978	16.306379558640945
1979	13.700341785511444
1980	11.33060723321923
1981	11.1415402969317
1982	17.61271509070124
1983	18.231234296841382
1984	19.738322980480387
1985	19.11619546726847
1986	18.555032336140854
1987	20.32381409352546
1988	22.046331961713914
1989	23.693823655881676
1990	25.57843411647077
1991	24.211853851684534
1992	24.01378510330381
1993	25.7659789817093
1994	26.130224270158102
1995	30.373355924551955
1996	30.675561146545444
1997	33.68623980880662
1998	35.88223662637556
1999	37.521844228775635
2000	38.330654154025055
2001	39.027421055367284
2002	39.632498279716
2003	39.47946148087525
2004	40.06889583627221
2005	40.308250233042706
2006	39.95384386000099
2007	37.962899627499745
2008	32.9660020419474
2009	32.683780558311824
2010	33.91545445878777
2011	34.91599353944059
2012	36.459529839546605
2013	37.828401046337085
2014	40.85177196306197
2015	54.578981845905226
2016	53.327651246359075
2017	55.84537746468795
2018	57.29635332635401
2019	58.53485859838471
2020	62.0669189808274
2021	63.459877898883256
2022	64.10048736059309
2023	60.653898371387406