The BBC1 broadcast on 30th March 2013 achieved a 6.18 million audience figure, representing 29.8% of the audience. It was no 3 in chart for all TV programmes that day.
Consolidated figures usually arrived in about ten days time.
There is more on this story over at Doctor Who News:http://www.doctorwhonews.net/2013/03/the-bells-of-saint-john-62-million.html#.UVf7fav9ro8.twitter