| 0.25 bonus share for each underlying share | 20/09/2017 | 24/09/2017 |
| 0.10 new share for each underlying share | 22/06/2016 | 23/06/2016 |
| 1 share for every 5 shares | 29/09/2013 | 30/09/2013 |
| 1 bonus share for each underlying share | 12/05/2010 | 13/05/2010 |
| 1 bonus share for each underlying share | 09/07/2008 | 10/07/2008 |
| 1 share for every 5 shares | 18/07/2007 | 19/07/2007 |
| 1 share for every 5 shares | 29/11/2006 | 30/11/2006 |