This article from the Echo has rather different figures:
http://m.dailyecho.co.uk/sport/saints/news/14257793.Forster_twice_as_good_as_Shilton/?ref=mac
Paul Jones: 192 league apps, 327 goals conceded, 54 clean sheets Games per clean sheet 3.55 Mins per goal conceded 52.75
Tim Flowers: 192 league apps, 325 goals conceded, 37 clean sheets Games per clean sheet 5.1 Mins per goal conceded 53
Peter Shilton: 188 league apps, 227 goals conceded, 62 clean sheets Games per clean sheet 3.03 Mins per goal conceded 74.5
Dave Beasant: 88 league apps, 125 goals conceded, 20 clean sheets Games per clean sheet 4.4 Mins per goals conceded 63.3
Antti Niemi: 81 league apps, 108 goals conceded, 23 clean sheets Games per clean sheet 3.5 Mins per goal conceded 66.7 mins
Artur Boruc: 49 league apps, 56 goals conceded, 19 clean sheets Games per clean sheet 2.6 Mins per goals conceded 77.9
Fraser Forster: 34 league apps, 21 goals conceded, 18 clean sheets Games per clean sheet 1.8 Mins per goal conceded 142
Kelvin Davis: 20 league apps, 36 goals conceded, four clean sheets Games per clean sheet 5 Mins per goal conceded 48.75
Maarten Stekelenburg: 17 league apps, 19 goals conceded, six clean sheets Games per clean sheet 2.8 Mins per goal conceded 80.5