Still, the latest rate is up from the 5.4 million reported for early September.
It will take some months for the impact of the latest rate cut to be measured.
The one-year bill was offered at a late rate of 3.98 percent.
The latest rate was well above market expectations of a rise around 1.5 percent.
And one-year bill rates fell by a similar amount, to a late rate of 7.25 percent.
And one-year bill rates rose by three basis points, to a late rate of 7.75 percent.
And one-year bill rates rose by a similar amount, to a late offered rate of 3.88 percent.
And one-year bill rates rose by one basis point, to a late rate of 3.90 percent.
One-year bill rates fell by a similar amount, to a late offered rate of 3.96 percent.
One-year bill rates rose by the same amount, to a late offered rate of 8.35 percent.