The number of boats in service at any one time depends on demand.

A number of boats were seen, and several rafts, but they had no white men on them.

We climbed over a number of little boats getting out.

Production ran for more than ten years and the total number of completed boats is about 530.

The number of boats has increased in the past decade.

But after this we'll have to see about increasing the number of boats.

But the number of boats has increased dramatically in Connecticut over the last few years.

What we're doing seems to work just fine, although the number of boats in the water has fallen.

There are also a large number of boats anchored on the sand.

There were a number of boats carrying press in the area.