Year	% of GDP
1960	36.969291994816345
1961	37.94398747262948
1962	35.858300029757736
1963	37.19891447307439
1964	37.288100937635235
1965	37.267995919868845
1966	42.83791755466972
1967	45.621931210924956
1968	47.635724316184096
1969	46.91155246721223
1970	47.75474978375422
1971	48.12562109401867
1972	49.34922907721963
1973	50.9578568484215
1974	50.79782765720127
1975	52.2247302790827
1976	53.62044423293245
1977	55.6867327339077
1978	58.692067723567995
1979	60.58193795927779
1980	60.39865170706715
1981	68.2944309611845
1982	68.66642107676574
1983	64.7846272156766
1984	63.48807106708861
1985	62.8680051277231
1986	64.82027229743844
1987	64.48942779139738
1988	66.31009389147128
1989	70.18697725807388
1990	73.25798237529493
1991	75.42239442098798
1992	78.38888919820276
1993	76.82390564322785
1994	75.82060981953907
1995	75.69325449934526
1996	76.17109814219954
1997	75.3758704149874
1998	74.43884127434727
1999	73.18747476230682
2000	71.11050636356157
2001	154.64180675995053
2002	152.2116381429973
2003	145.54458239223683
2004	144.18972572178083
2005	148.5495935136641
2006	158.71420009969438
2007	112.08855374415275
2008	122.64334518176992