Year	% of GDP
1977	119.731167790649
1978	143.600101851069
1979	142.376410033365
1980	139.214981635391
1981	117.654590421547
1982	105.276771418256
1983	99.8857672178919
1984	99.6167176025283
1985	98.4075941039939
1986	115.51172938112
1987	115.625207982855
1988	130.100923169541
1989	130.818945367702
1990	117.66504690506
1991	116.174020784695
1992	115.363121850965
1993	114.067450177609
1994	111.125756262194
1995	113.319644658947
1996	105.018247624476
1997	107.819452856033
1998	103.028003592735
1999	100.293302594762
2000	98.393751417476
2001	91.4047233467222
2002	89.1720044107552
2003	100.545558904475
2004	101.290936279062
2005	110.22034225298
2006	101.086349942865
2007	94.1444850277737
2008	105.410398973284
2009	93.2094067075982
2010	99.7922257038621
2011	96.1777913589083
2012	94.2604699518527
2013	90.7381460548397
2014	86.4651841506909
2015	81.0138938516478
2016	80.0283318591234