Year	% of GDP
1972	7.610619469026549
1973	7.091172214182344
1974	8
1975	9.181818181818182
1976	9.044493070751276
1977	9.951325040562466
1978	10.740265297389815
1979	11.342894393741851
1980	11.423850498887393
1981	10.54584203697114
1982	11.21787245269417
1983	12.999394459093425
1984	12.623273804501098
1985	12.312578626033469
1986	11.864998883776572
1987	12.747574365303175
1988	11.411961976224918
1989	12.13921122139173
1990	11.848364661183675
1991	11.594492605770933
1992	11.602435342957381
1993	8.56713247842731
1994	8.096059185378577
1995	8.031618305758952
1996	8.314389303917343
1997	8.592240646708552
1998	7.702649139949965
1999	8.185176466678023
2000	9.132295413803192
2008	9.578771530101042
2009	9.23460486136909
2010	9.675317453236335
2011	9.617072146338163
2012	9.352411062481636
2013	9.883610122574938
2014	10.24285504359912
2015	12.345975781479222
2016	13.123785607194083
2017	12.687431728050877
2018	12.712157297376073
2019	12.776923088156314
2020	13.900394486324629
2021	13.447006933193126
2022	13.437184766089713