współczynnik urodzeń

The birth rate is 3.5 times higher than the national average.

The birth rate is at one and a half children per woman.

"Do I think the birth rate is down as a result of the program?"

The average birth rate is at 1.5 children per woman.

The birth rate simply has to be cut, at least for a while.

And the birth rate has been on its way down since the late 1940's.

A birth rate of about 1.5 on average is too low.

Between 1981 and 1997, the birth rate for women in their 40s increased 92 percent.

For the first half of 2007, the birth rate was 9.1 per 1000.

This is the first community in the world to have a birth rate of two girls to every boy.