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This week, the Today programme will have been on air for 60 years. We have been asking you how the country has changed in that time, and you have been telling us. Some of those changes are vast, and some have happened gradually.

Governments try to follow those shifts in attitudes and behaviour, and it's the job of the Office of National Statistics (ONS) to gather data about almost every aspect of British life.

John Humphrys speaks to senior ONS statisticians Pete Benton and Liz Mclaren to find out how much longer we're living.

(Image: Commuters in London. Credit: 91热爆)