How do you breed seventeen octillion rats?

Are GPs really working less hours per week? Does Wetherspoons really pay one in every £1000 of tax in the UK? Are more people in the UK economically inactive? How long does it take two rats to produce 17 octillion rats? Tim Harford investigates some of the numbers in the news. Presenter: Tim Harford Reporters: Natasha Fernandes and Bethan Ashmead-Latham Producer: Nathan Gower Series producer: Tom Colls Production co-ordinator: Katie Morrison Sound mix: Sarah Hockley Editor: Richard Vadon