International Data, a market-research firm in Connecticut, reckons on less than $200 billion.
The electoral commission reckons that less than 10% of 18-19-year-olds are registered.
Booz Allen & Hamilton, a consultancy, reckons that less than 10% of mergers now go beyond a company's core business.
He reckons that less than 10% of those 13,000 schools are accredited, making them of uncertain quality.
A study, commissioned from an independent consultant by TenneT, reckons that less than 6GW of the planned 14GW of turbines are likely to be built by 2023.
Mr Ciafardini reckons that less than a third of crimes are reported and of that third only "around 1%" are cleared up.
The White House reckons that less than one-third of independent voters actually switched parties in the past three elections.With the decline of swing voters, there seems less and less point in running presidential campaigns to appeal to the slim middle.
The National Institutes of Health in Bethesda, Maryland, reckons that less than 1% of weight-loss surgeries result in death from complications.Enter the stomach stimulator, a contraption touted as relatively simple to implant and run.
This figure has been widely accepted, yet the last time outsiders estimated Saudi reserves, before the nationalisation of the oil industry in the 1980s, they were reckoned at less than half this amount.Reserve estimates often rise, since new finds and better drilling methods can make more oil extractable than was first thought.
The World Bank reckons that less than 30% of workers pay into a pension (one indicator of formal employment), compared with nearly 60% in Brazil and Chile.In this section Labour pains Owning ideas Winds of change ReprintsFiring is as awkward as hiring: sacking an employee after a year costs three times as much as in Chile, and eight times more than in Brazil.
