For a business journalist, Richard Curran never put too much store in numbers – he was always more interested in the stories behind them and the truths they sometimes conceal. But here are five numbers that reveal something about Richard Curran. First, 372,000. That’s how many people listen to The Business, the RTÉ Radio 1 show he presents on Saturday mornings. According to the latest JNLRs, it’s the fifth-most popular radio programme in the country. So Curran has many more listeners than broadcasters with vastly bigger media profiles – Oliver Callan and Miriam O’Callaghan, to name two. One of the…