I can't give you a precise number of months, but it's been quite a while.
It was impossible to give a precise number, she said.
It was difficult to determine the precise number of the dead.
He declined to list the countries or give a precise number.
I remember arguments at the beginning of 1991 about the precise number.
Each model is then wound a precise number of times.
There was a general feeling here that precise numbers of dead may never be fully known.
There is no precise number of foreign civilians working in Iraq.
There are indeed more than 20 security features, though the precise number is a secret of the central bank.
The forms allow officials to report a range of figures rather than precise numbers.