| Year | Ordinary | Special | Total |
|---|
| FY 1999/2000 | 5.5 cents
| 14.3 cents | 19.8 cents |
| FY 2000/2001 | 6.0 cents | - | 6.0 cents |
| FY 2001/2002 | 6.0 cents | - | 6.0 cents |
| FY 2002/2003 | 7.0 cents | - | 7.0 cents |
| FY 2003/2004 | 8.0 cents | 37.0 cents | 45.0 cents |
| FY 2004/2005 | 9.0 cents
| - | 9.0 cents |
| FY 2005/2006 | 10.0 cents | - | 10.0 cents |
| FY 2006/2007 | 10.0 cents | 5.0 cents | 15.0 cents |
| FY 2007/2008 | 14.0 cents | - | 14.0 cents |
| FY 2008/2009 | 10.0 cents | - | 10.0 cents |
| FY 2009/2010 | 13.0 cents | - | 13.0 cents |
| FY 2010/2011 | 11.0 cents | 6.0 cents | 17.0 cents |
| FY 2011/2012 | 11.0 cents | 15.0 cents | 26.0 cents |
| FY 2012/2013 | 11.0 cents | 4.0 cents | 15.0 cents |
| FY 2013/2014 | 13.0 cents | - | 13.0 cents |
| FY 2014/2015 | 14.0 cents | - | 14.0 cents |
| FY 2015/2016 | 15.0 cents | - | 15.0 cents |
| FY 2016/2017 | 17.0 cents | - | 17.0 cents |
| FY 2017/2018 | 18.0 cents | - | 18.0 cents |
| FY 2018/2019 | 19.0 cents | - | 19.0 cents |
| FY 2019/2020 | 6.0 cents | - | 6.0 cents |
| FY 2020/2021 | - | - | - |
| FY 2021/2022 | - | - | - |
| FY 2022/2023 | - | - | - |
