The average yield on the 1 1/2-year, zero-coupon bond slipped to 16.496 percent from 16.497 percent when it was last sold, on Sept. 5.
The yield on the three-year bond rose to 16.937 percent from 16.896 percent at the last similar auction on Sept. 5.
Yields on the seven-year bond climbed to 17.438 percent, from 17.428 percent at the last similar sale, also on Sept. 5.