The information requested is available from 2004-05 onwards, when NHS Direct was established as a national service. The information is available in the following table.
Total calls to the 0845 4647 service answered (Thousand) Cost per call (£) 2004-05 5,368 22.61 2005-06 5,521 25.54 2006-07 5,009 25.49 2007-08 4,858 25.53