Share capital:
Ordinary shares (allotted, called-up and fully paid)
| Number of
shares | £m |
| At 1 January 2017 | 191,456,172 | 33.1 |
| At 31 December 2017 | 191,456,172 | 33.1 |
Details of share options in issue on the Company's share capital and share-based payments are set out in note 26 to the consolidated financial statements.