According to the report, how many overseas are now studying in Britain?

Britain wants to attract more foreign students like these, and triple its total overseas numbers inside 15 years to nearly 900,000, a quarter from China’s growing middle class. They could be worth more than 20 billion dollars annually but it’s not guaranteed, for the traditional big players, Britain and the US, are increasingly facing competition for market share.
     Education is big business. In fact for both the UK and the US, income from foreign brain power is greater than export sales of arms and ammunition.  But security fears and restrictive visa controls are shrinking America’s dominance of the 2-million-strong international student market, while in Britain a third of colleges reported a drop in last year’s foreign enrolments due to visa problems. Nick Mackie, BBC News, Chongqing.