Year	% of GDP
1977	83.3527007054679
1978	83.4484968017609
1979	95.0518767714143
1980	95.5478144941954
1981	102.030300174584
1982	93.5111767691261
1983	84.0476420476174
1984	77.5945557420163
1985	85.4335038965726
1986	96.8584459223263
1987	90.6333474859047
1988	87.1874399616774
1989	80.0377249372144
1990	83.38497809984
1991	82.0150279608441
1992	76.7965731475657
1993	87.0670868814308
1994	88.7945218619372
1995	85.6314845727594
1996	88.7659944992278
1997	89.633290541088
1998	93.9449043835003
1999	100.482140619212
2000	104.965260086782
2001	91.7177798195601
2002	82.3061084589403
2003	83.0766065630468
2004	86.2697127545761
2005	78.3799870444727
2006	80.821745421846
2007	85.1384100637864
2008	79.8490477236964
2009	71.079255912764
2010	73.0637768731268
2011	75.9870165636798
2012	75.2829872507625
2013	75.7790284035998
2014	119.061389825371
2015	114.721399369239
2016	107.910433290935