Year	% of GDP
1960	6.370480576992967
1961	6.273878698046861
1962	6.711539143558371
1963	6.7661984361628384
1964	7.758365792289998
1965	8.076857119790022
1966	7.9732707134480245
1967	7.666703758875608
1968	8.011606746027486
1969	8.737345733543773
1970	8.402700040356082
1971	8.10075518320305
1972	9.33603862197853
1973	11.492692914193823
1974	11.975102909773158
1975	13.129151264368467
1976	13.708462547899591
1977	14.11929420244881
1978	14.950240620436814
1979	15.46153757563502
1980	15.131455967777384
1981	15.689668640706694
1982	16.445874145194807
1983	16.933448775302057
1984	19.664734894236677
1985	19.669199289876236
1986	21.09157688083883
1987	20.84296753506382
1988	22.34157857553977
1989	24.54369343662162
1990	27.733402585437737
1991	29.073096582101805
1992	31.747335910383683
1993	26.92236598333976
1994	31.22132937512246
1995	28.45908967267971
1996	27.53739296447064
1997	31.92804972263818
1998	32.75928857888448
1999	34.650419818555115
2000	34.585477912050436
2001	37.16327065420021
2002	44.03679694128703
2003	44.87788044235592
2004	45.35308217089084
2005	43.777021964339
2006	42.48640017415994
2007	39.74275328858566
2008	33.96712075020961