Year	% of GDP
1961	98.67337602927722
1962	98.32761578044597
1963	97.60551948051948
1964	97.1019809244314
1965	98.2753010087862
1966	100.91664279576054
1967	100.45638933661527
1968	99.74607577422073
1969	97.94798778869882
1970	93.71964022907005
1971	93.48168986164453
1972	88.59295297432142
1973	75.0081994096425
1974	76.5528905409371
1975	87.22376724886615
1976	82.41283016960038
1977	79.38390450519832
1978	81.47584908393077
1979	77.3000075156188
1980	85.62145073473451
1981	92.70758386866524
1982	90.67573747999084
1983	87.81796966161028
1984	86.70706340379895
1985	90.49544199928047
1986	88.0379465847685
1987	86.00007308271987
1988	81.46431027412385
1989	88.87284039793808
1990	83.87620765879981
1991	82.48557798979365
1992	74.54889888704712
1993	66.66803640771712
1994	64.86688606404715
1995	60.72282273556427
1996	66.2488189324032
1997	79.83534945477146
1998	76.87124275975191
1999	73.40173761355656
2000	61.17310236446928
2001	63.96854554024027
2002	75.89550598429926
2003	64.69166717585662
2004	66.75350531051129