Quarter	Billions of US Dollars
1972-04-01	0.011406
1972-07-01	0.011319
1972-10-01	0.011348
1973-01-01	0.012475
1973-04-01	0.013870
1973-07-01	0.013550
1973-10-01	0.012101
1974-01-01	0.012837
1974-04-01	0.013154
1974-07-01	0.012745
1974-10-01	0.013842
1975-01-01	0.014425
1975-04-01	0.014184
1975-07-01	0.012502
1975-10-01	0.012649
1976-01-01	0.012804
1976-04-01	0.012595
1976-07-01	0.013294
1976-10-01	0.013896
1977-01-01	0.013659
1977-04-01	0.013875
1977-07-01	0.013989
1977-10-01	0.015179
1978-01-01	0.015883
1978-04-01	0.015286
1978-07-01	0.016367
1978-10-01	0.017361
1979-01-01	0.016926
1979-04-01	0.016883
1979-07-01	0.017740
1979-10-01	0.017827
1980-01-01	0.016041
1980-04-01	0.017781
1980-07-01	0.017229
1980-10-01	0.015861
1981-01-01	0.014515
1981-04-01	0.012736
1981-07-01	0.013176
1981-10-01	0.013001
1982-01-01	0.010975
1982-04-01	0.010667
1982-07-01	0.010187
1982-10-01	0.010656
1983-01-01	0.010359
1983-04-01	0.009816
1983-07-01	0.009346
1983-10-01	0.008986
1984-01-01	0.009420
1984-04-01	0.008821
1984-07-01	0.008147
1984-10-01	0.007926
1985-01-01	0.008055
1985-04-01	0.008124
1985-07-01	0.009224
1985-10-01	0.000993
1986-01-01	0.001053
1986-04-01	0.001113
1986-07-01	0.001192
1986-10-01	0.001237
1987-01-01	0.001337