The implication was that this 55 percent cannot have contributed to the progress of science.

Normally only 3 to 6 percent of an audience contributes to organizations from which they benefit, so this is quite extraordinary.

Several studies have found that 20 percent to 30 percent of teenage workers contribute to family expenses.

Most New York participants receive the services free, while 18 percent contribute some money according to a formula based on their income.

Yet despite our wealth, only 9 percent of us contribute $25,000 or more each year to charity.

Over all, just 8.4 percent of the working public contribute the maximum.

"Last year, we raised $14 million, with 80 percent of it contributed by employees and their corporations."

States furnish 6 percent and individual institutions contribute the remaining 19 percent.

National surveys of high school seniors a few years ago found that fewer than 10 percent contributed half their job earnings toward family living expenses.

The benefits reaped from the project on the four major rivers areas which account for 70 percent of our territory will contribute to regional development.