Mortgages, birth rates and does space contribute 18% to UK GDP?

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Mortgage rates have risen to 6%. But are things as bad as when rates were much higher in the 1970s and 80s? We look at just how much pain today's rises mean. Also will there be just 6 grandchildren for every 100 South Koreans today? And we look into a claim that the space industry supports 18% of the UK's economy. Presenter: Tim Harford Series Producer: Jon Bithrey Reporters: Beth Ashmead Latham, Nathan Gower, Charlotte McDonald Sound Engineer: James Beard Production Co-ordinator: Brenda Brown