Board Thread:The Panopticon/@comment-1293767-20151029072618/@comment-27501528-20160111170133

Going over my list:
 * Parting of the Ways: 44:35/45:54
 * The Runaway Bride: 45:30/46:48
 * Utopia: 42:55/46:16
 * The Waters of Mars: 59:50/1:02:10
 * The End of Time: 1:10:55/1:12:36
 * The Almost People: 44:28/45:40
 * Closing Time: 42:17/45:40
 * The Name of the Doctor: 42:30/44:35

Utopia and Closing Time aside, they all seem to fall within the last 5%; those two fall within the last 10%.