While no authoritative estimate of the crowd was made, it was far short of that number.

This is double the last authoritative estimate, made in 1994.

These questions were swirling around the disclosure this week of the most authoritative estimates yet.

The survey provides the first authoritative estimate of the extent of data mining by the government.

By one authoritative estimate, the expense reached $300 million in 1994 alone, or billions over the past several decades.

The report provides authoritative estimates of the volume of imports.

The Iraqi Government has not come forward with any authoritative estimate of war dead.

An authoritative estimate is expected by the end of this year and the Swiss banks have committed themselves to pay in full.

Other authoritative estimates put it at just 3 per cent.

Other authoritative estimates range up to $160 billion.