Year	% of GDP
1960	62.74278368587122
1961	61.401716992303136
1962	61.64606265876375
1963	60.46107003044801
1964	60.9212335494009
1965	63.279367172050094
1966	63.91512298815669
1967	63.23387387387387
1968	62.57668032333075
1969	63.351338504418464
1970	57.84738106679481
1971	56.901874310915105
1972	59.47546421254594
1973	56.67180866312642
1974	46.5591531977832
1975	55.71880980202882
1976	58.517956537186166
1977	60.09749142614928
1978	65.59629717260145
1979	62.51351468443273
1980	62.20282374970988
1981	65.8226627584079
1982	70.53304860128816
1983	78.64973906338213
1984	59.0481155611419
1985	59.826247307640166
1986	66.68687087568381
1987	62.57643006170118
1988	66.23545860849232
1989	62.61431538552704
1990	60.091898207357566
1991	64.39234737079143
1992	67.40013210752652
1993	70.57071422062329
1994	67.78855681478132
1995	67.22724092895307
1996	61.20199681483073
1997	51.52229740679235
1998	57.630302157438486
1999	57.413062014066995
2000	51.74860573680032
2001	54.90859828518098
2002	53.542326705988195
2003	54.78200933184998
2004	49.21636785383804
2005	46.75008648434823
2006	46.995757378335604
2007	51.12691000665832
2008	51.50154590368445
2009	62.88064646273247
2010	55.894882734672244
2011	55.16190028716598
2012	59.27283620458811
2013	65.09003034630234
2014	75.28960223241214