Year	% of GDP
1970	11.9846295951762
1971	9.69646663923761
1972	14.2254600114832
1973	13.195711730102
1974	43.8577037867226
1975	32.2604204182376
1976	22.9571657553193
1977	29.263783787557
1978	30.34482531774
1979	56.6766946771444
1980	34.8256465835769
1981	19.6621310391057
1982	9.28789748413502
1983	18.6778196782677
1984	21.9280770199259
1985	25.4219478442254
1986	9.84909703703226
1987	18.3020181275691
1988	13.7354656182426
1989	26.6625947597505
1990	33.0286916647238
1991	21.9792106166799
1992	25.2642206762982
1993	32.1984933285182
1994	30.5940340962516
1995	31.9828513449062
1996	32.9208323547404
1997	33.7890685570541
1998	20.2016349235387
1999	26.0513920456146
2000	47.7698658424489
2001	32.5167942663475
2002	31.7271986277113
2003	26.0570264508303
2004	27.4567837566907
2005	37.767344326428
2006	37.655973866027
2007	37.533512307082
2008	41.0680827434693
2009	27.7362590783372
2010	35.6548863864577
2011	39.1459946806966
2012	40.6293332424739
2013	32.806984483505
2014	24.7540184011901
2015	12.5534347249347
2016	11.6621945364629
2017	17.699784026005
2018	21.16026297404
2019	19.1754988018892
2020	13.4988249621846
2021	18.4933440925176