Hundreds join growing list of Britain's ultra-rich

Fortunes of already wealthy people grow much faster than that of general population

The UK's ranks of the ultra-rich have swelled by 400 over the last year, taking the number of people with fortunes of more than $50m (38m) to nearly 5,000.

The fortunes of the already very wealthy are growing at a far faster rate than the general population, according to a report by the Swiss bank Credit Suisse published on Thursday.