The fee for their use could be slightly lower; they vary from 2 percent to 4 percent.

Estimates vary from 6 percent to more than 50 percent; but most of the evidence is anecdotal.

The taxes imposed by the island governments vary from 5 to about 12 percent and are added to hotel bills.

No one has been spared an increase, but the amounts vary from 5 percent to 15 percent.

Where there is a central policy, the requirement can vary from 5 percent to 30 percent.

Tax rates now vary, depending on income, from 15 percent to 39.6 percent.

Death rates in previous outbreaks have varied from 3 percent to 20 percent.

Spending outside the network can vary from 4 percent to 40 percent of the total.

Tax rates on income vary from 19 percent to more than 50 percent.

So one can only guess at the actual number of athletes involved in drugs, and the estimates vary from 3 percent to 50 percent.