John was very productive in his work between 1968 and 1986.

The mines were the among the most productive in the area and worked until 1942.

"American workers are now the most productive in the world," he said.

The region is quite productive in both industry and agriculture.

If we can shake up management, we're going to be more productive in this country.

"Or it could be the least productive in modern memory."

I've got guys who have been productive in the past.

The line has been most productive in the past 10 games.

If only he would take all that energy and do something productive with it, in his job for instance.

Often women find this time of life highly productive in their work and personal lives.