Year	% of GDP
1981	88.3894938455733
1982	85.5414791003084
1983	76.7752618711562
1984	62.2683986995086
1985	50.1925425615917
1986	56.312921541112
1987	56.187687943265
1988	49.041903554302
1989	68.8076226189763
1990	64.2114908227808
1991	59.8778466694505
1992	53.5015012511891
1993	50.9021847278106
1994	46.1228774285427
1995	46.0229204907539
1996	42.4172274578762
1997	44.3159556774042
1998	37.6245227279506
1999	46.5526427411721
2000	57.1604731570211
2001	37.7473059960287
2002	34.0267796335688
2003	33.5545956225736
2004	35.7297017416771
2005	35.198040174963
2006	44.3312834885182
2007	24.380350496863
2008	30.4403051942629
2009	23.2515082498564
2010	23.9931664510888
2011	24.2390434889366
2012	31.9524599858713
2013	18.8224043489049
2014	20.5747525502833
2015	14.2714627424429
2016	13.0804366619049
2017	15.4698528527607