Year	% of GDP
1975	10.612753370914769
1976	12.61682112085196
1977	25.22307740997854
1978	38.610866365063586
1979	32.664769586424065
1980	49.55987683291292
1981	38.02936531290038
2007	42.90948608940958
2008	43.79808439147292
2009	30.065022840108085
2010	20.190438829077483
2011	13.44837747830746
2012	17.789550425309184
2013	22.309536388430583
2014	25.2743766817595
2015	24.499206233525594
2016	17.466480267935456
2017	7.410877422961941
2018	16.623819374784663
2019	18.212062569181303
2020	20.65027291696102
2021	16.901778670333346
2022	13.743277225055047