Year	% of GDP
1975	4.751154759334266
1976	5.378830095878833
1977	6.1928722974944606
1978	6.392287608907858
1979	2.6038656843228734
1980	2.4329229244874218
1981	2.449568451673614
1982	3.105404252585086
1983	6.17982417335948
1984	7.709752345743843
1985	14.047429128106723
1986	16.731678459674974
1987	18.177796610078445
1988	11.517498928248513
1989	18.92156201610015
1990	13.727276639726604
1991	12.990939673849548
1992	12.269230109535842
1993	14.45684216396876
1994	20.03004190050371
1995	25.60145286711759
1996	38.02990642002177
1997	59.578145331476286
1998	92.4334227413485
1999	93.92892025369993
2000	155.7878586233361
2001	105.63536110907322
2002	111.44513850233244
2003	92.90525882891907
2004	95.46177012599595
2005	86.77375617814447
2006	122.73008682452478
2007	181.65674682479772
2008	101.98489417444965
2009	62.19908288058743
2010	65.7782653536473
2011	57.15980116313163
2012	49.76167190584742
2013	54.332791289209446
2014	53.373023588751