From 1967-1977, the faculty tripled in size and the number of faculty members with graduate degrees increased eightfold.

Real incomes more than doubled and the average salary increased eightfold from $80 to $640.

Traffic on the street increased eightfold between 1885 and 1913, while that on Broadway only doubled.

From 1950 to the mid-1980s, the average net wages increased more than eightfold.

Madrid soared onward and upward, increasing nearly eightfold in population; Spain's fortunes as a whole were more volatile.

Twenty-four million people relocated to urban areas, causing their population to increase eightfold.

But that figure was far below the $220.8 billion increase in 1986, and off the pace of 1980 to 1987, when industry assets increased eightfold.

Some homeowners who install solar panels and eco-friendly 'heat pumps' have seen their energy bills increase more than eightfold because of bad installation.

Deposits increased eightfold between 1858 and 1875.

Note that if the span doubles, the deflection increases eightfold.