The rate on the six-month bill was 3.17 percent, down seven basis points.
For a six-month bill the rate was 5.34 percent, down eight basis points.
For a six-month bill, the average rate was 7.05 percent, down by 8 basis points.
Last week six-month bills sold at an average rate of 9.04 percent.
The six-month bill dropped 8 basis points, to 6 percent.
The six-month bill increased by 1 basis point, to 6.12 percent.
The six-month bill fell by 30 basis points, to 6.21 percent.
At the same time the six-month bill dropped 14 basis points, to 5.54 percent.
It is the highest rate on a six-month bill since June 19, 1989.
Six-month bills were up 1 basis point, at a late rate of 8.36 percent.