"in fact" column - extracts from September's Prospect magazine

In 1935, 7% of Germans were members of the Nazi Party. Among teachers the figure was 30%.

In 2006, 33% of return flights from Britain were made by 4% of the population. 50% of the UK population took no flights at all.

Spammers usually need to send 1 million e-mails to get 15 positive responses.

Mathematics and Computer science have the highest university drop-out rate, with 10% of undergraduates not continuing into a second year of study. Medicine and dentistry have the highest retention rate (98%).

It costs 12p to send a 160-character text message. Per byte, this is 12 times what NASA pays to retrieve data from the Hubble Space Telescope.

The best value stars in Hollywood are Matt Damon and Jennifer Aniston. For every dollar they were paid for their last 3 films, they returned $29 and $17 of gross income respectively.