Africa's share of the cotton trade has doubled since 1980.

The company's share more than doubled from 1986 to 1987.

Those shares, priced at $17, more than doubled within a couple of months.

Over the same period, the share of revenue from consumer services more than doubled, to 75 percent.

Papa John's shares have nearly doubled since he took office and are up over 14 percent so far this year.

His shares doubled in value when the company announced it was moving to set up an internet business.

Its shares have nearly doubled in price, closing on Friday at $66.625.

At the same time, the share of single-parent families more than doubled.

The network's share of the audience nearly doubled from the previous two weeks.

Its shares have doubled this year but remain well below the prices of a few years back.