Year	% of GDP
1974	22.634187082405347
1975	28.846622889305817
1976	32.53375527426161
1977	33.84417549167928
1978	38.6833220796759
1979	33.90141251081003
1980	31.675155765084927
1981	28.212617288880015
1982	27.64844954599966
1983	32.025537417165026
1984	32.71679232350925
1985	36.54355140186916
1986	31.75484751047452
1987	31.25779870512066
1988	32.41746647174728
1989	35.06488483067705
1990	22.355341908502748
1991	24.253780374469816
1992	25.61453965367661
1993	24.03332911456653
1994	23.449432926308518
1995	19.918037500840587
1996	20.72218155173754
1997	21.554042516268016
1998	22.07630540515738
1999	23.53121563319516
2000	17.229850296951046
2001	17.17324625752901
2002	17.10611738853697
2003	17.777755534543186
2004	17.67439712110236
2005	17.168725608403935
2006	19.474223417017754
2007	21.56834288895066
2008	22.353013689833528
2009	25.423163144984628
2010	25.61062888641744
2011	25.079639857280693
2012	24.07331729894297
2013	25.224207568427325
2014	24.246605476158553
2015	25.52372328986075
2016	29.76561101945397
2017	29.550779345042837
2018	29.209816880058753
2019	28.274775130747408
2020	32.331582127854205
2021	29.651562056695376
2022	28.107742150606395