Ukraine’s progress in numbers

Ukraine has reportedly recaptured nearly 10,000 square kilometres of territory that had been occupied by Russia. We ask where the numbers come from and what they mean. Plus with Norway supplanting Russia to become Europe’s biggest supplier of natural gas, we ask how much money the country is making from the increased demand and higher prices.Presenter: Tim Harford Producer: Jon Bithrey Editor: Richard Vadon Production Coordinator: Jacqui Johnson Sound Engineer: Neil Churchill