Year	% of GDP
1960	7.033308318486631
1961	6.958155388813725
1962	7.982851703118143
1963	9.22564246842095
1964	8.694917188526288
1965	8.287160691202605
1966	8.779430581063554
1967	7.79246468368675
1968	8.293959488096453
1969	8.08483911285999
1970	8.047269074845804
1971	7.877478914946744
1972	8.032617329322397
1973	8.613525897303587
1974	8.505198749243025
1975	8.490064263791025
1976	8.285543431691503
1977	8.215833043293602
1978	9.208263448032447
1979	9.771179577358025
1980	9.724614833915957
1981	9.018128721821649
1982	8.909779258626404
1983	8.903948089611907
1984	8.511479266415193
1985	7.85908548111813
1986	8.309741493810314
1987	8.17471969936517
1988	6.756337404788595
1989	6.558002976339602
1990	6.282636617751602
1991	5.994483523105929
1992	6.332558994524327
1993	6.287581287735071
1994	5.484903464939354
1995	5.955207422954496
1996	7.242880205656779
1997	7.532956488932657
1998	8.208481010811536
1999	8.2883523503162
2000	6.728377629694386
2001	7.19597947031231
2002	7.106678006284842
2003	7.9424434683212946
2004	8.412140984170044
2005	9.421463177032177
2006	10.403583264610228
2007	10.447655865734372
2008	11.491822592758119
2009	12.063432957020048
2010	12.498641704503216
2011	11.473204212847516
2012	10.074600920997806
2013	10.427990313234476
2014	11.60080908011429