Updated at 17:08 on 25 Oct 2016 BST
More share price information
Investor Relations >
Please note that in order to view this video you need a web browser that supports HTML5 video.
Alternatively you can use the links below to view the video in your player of choice.
| video/mp4 (1825 kbps)
| video/mp4 (993 kbps)
| video/mp4 (513 kbps)
Back to top