| Year | Month | Ratio | Ex Bonus Date |
|---|---|---|---|
| 2024 | Oct | 1:1 | 03/12/2024 |
| 2019 | Jan | 1:3 | 06/03/2019 |
| 2017 | Apr | 1:1 | 13/06/2017 |
| 2010 | Apr | 2:3 | 15/06/2010 |
| 2005 | Apr | 1:1 | 22/08/2005 |
| 2004 | Apr | 2:1 | 25/06/2004 |
| 1997 | Sep | 2:1 | 20/10/1997 |
| 1995 | Dec | 1:1 | 24/02/1995 |
| 1995 | Feb | 1:1 | 24/02/1995 |
| 1992 | Sep | 1:1 | 07/08/1992 |
| 1992 | Jul | 1:1 | 12/08/1992 |
| 1989 | Oct | 1:1 | - |
| 1987 | Dec | 1:1 | 24/02/1995 |
| 1985 | Oct | 1:1 | - |
| 1981 | Oct | 1:1 | - |