This proved to be a considerable underestimate of the scale of Thaksin's victory.

Given that Strathclyde is the biggest local authority in Europe, £7.5 million must be a considerable underestimate.

These figures are likely to be a considerable underestimate.

This, too, is judged a considerable underestimate by some analysts.

More than 51,000 cases of AIDS have been reported from 112 countries, figures that health officials say are a considerable underestimate.

But the United Nations agency added, "This figure is regarded as a considerable underestimate of the true number."

It occurs in 16,000 species (about 7% of plants), belonging to over 300 genera and around 40 families, but this is thought to be a considerable underestimate.

The totals from the second survey were likely a considerable underestimate as several groups were not included.

The authorities acknowledge that the existing figure on Canton's population, officially said to be 3.2 million in 1985, is a considerable underestimate.

In retrospect, this part of the plan represented a considerable underestimate.