It's worth noting that it's 5% annualized, ie. if inflation kept growing at the same rate for a year, it would be 5%. Prices didn't actually rise 5% in one month.
edit: it isn't annualized, but rather YOY
edit2: annualized == YOY, so either statement is correct
edit: it isn't annualized, but rather YOY
edit2: annualized == YOY, so either statement is correct