Those are the worst ratings for a Brazilian President that Gallup has measured since 1980.

Long-range effects are yet to be measured since only the first 14 graduates have returned to their communities.

A large number of these changes have led to a fluctuating population decline, as measured since 1959.

The age of an adult human is commonly measured in whole years since the day of birth.

Worldwide, a man's wealth is measured at least since the first pastoral cultures time by his cattle and his wives.

These forces have been measured by several researchers since the 1970s, and have been shown to influence bicycle stability.

Wilson Lake water quality has been measured since 1977.

The depletion rate over the US has been measured at 4 to 5 per cent since 1978.

Lovell Lake water quality has been measured since 1979 at station 1 and 1989 at station 2.

A Federal advisory panel said today that the way the tar and nicotine in cigarettes have been measured since 1967 should be changed.