Year	% of GDP
1975	37.5814955580997
1976	37.0263443740258
1977	31.1504618714453
1978	31.950511608593
1979	56.671735250579
1980	42.3274106499484
1981	33.4086698393858
1982	23.0115404847624
1983	24.2798442244752
1984	26.4353697598988
1985	24.6652930237137
1986	18.3666363793088
1987	24.3087258563614
1988	21.754674597305
1989	30.0841004001769
1990	36.6027000714668
1991	24.9355118597408
1992	24.7594060168968
1993	22.1505222562258
1994	18.263480223591
1995	17.8753368140734
1996	20.7195621529487
1997	18.6806267958819
1998	12.5278825303178
1999	14.8547635599251
2000	22.3844177151254
2001	17.5963966616315
2002	16.2376283737788
2003	19.2061128677808
2004	22.2210170035245
2005	25.3343747676468
2006	27.2052072035567
2007	24.9372063571947
2008	27.7149122716078
2009	19.713461721995
2010	23.7768704858008
2011	29.7789568323524
2012	28.2144669709365
2013	27.3813114030779
2014	23.9739257701595
2015	14.0468089597238
2016	11.8055195768229
2017	14.3278424370326
2018	18.1866824883602
2019	16.8958990035406
2020	11.9722335248016
2021	17.634095847399