Year	% of GDP
1977	40.0186388835787
1978	38.0907905254744
1979	29.0239286197107
1980	28.7253558544702
1981	32.5671923038778
1982	30.6562812952042
1983	36.0922879640947
1984	32.1297912448509
1985	33.1377324733511
1986	32.1920707039273
1987	38.1980202248871
1988	37.1335452098207
1989	38.1350801529823
1990	38.9245398345803
1991	40.2052686853257
1992	42.8200426018141
1993	40.9439435310141
1994	36.3718565570856
1995	42.498797527717
1996	46.3752181500873
1997	51.7939743602675
1998	51.7407942373708
1999	53.0170797334976
2000	53.7983294194095
2001	56.9244794854155
2002	60.094779692894
2003	58.2779314548268
2004	54.4307735618203
2005	53.9388866040809
2006	56.9801794532302
2007	56.8700180042882
2008	58.6594013354386
2009	65.7955601859272
2010	69.9722704826134
2011	68.0341136717723
2012	63.6323778532537
2013	61.2814888295866
2014	56.0283278357383
2015	48.6225959185356
2016	47.0106186461537
2017	44.3336050564692
2018	41.6541874622447
2019	41.9757859373826
2020	53.802449365344
2021	45.4562884943185
2022	38.1460990545085
2023	37.5014254927286