Decisions about its value are therefore based on indirect evidence.

I believe that one must base one's decision on evidence, and Europe has the largest economy in the world.

This estimate is based on evidence of five to ten large impact events in the last 10,000 years.

He said at least 95 percent of the government's case was based on circumstantial evidence.

Her search had been based on slender enough evidence from the start.

The case is based on recent evidence from two other siblings.

The answer, based on scientific evidence so far available, is 'no'.

Some of what I'm about to describe is based on fact and hard evidence.

But measures will have to be taken in the meantime based on available evidence.

But some of the analysis is based on new evidence.