| Weekly Tariffs | 2008 |
| 11 January | 550 |
| 18 January | 550 |
| 25 January | 550 |
| 31 January | 550 |
| 8 Feburary | 650 |
| 15 February | 650 |
| 22 February | 650 |
| 1 March | 600 |
| 7 March | 600 |
| 14 March | 700 |
| 28 March | 700 |
| 5 April | 600 |
| 12 April | 600 |
| 19 April | 600 |
| 26 April | 600 |
| 2 May | 600 |
| 9 May | 600 |
| 16 May | 600 |
| 23 May | 700 |
| 30 May | 600 |
| 6 June | 600 |
| 13 June | 650 |
| 20 June | 650 |
| 27 June | 700 |
| 4 July | 700 |
| 11 July | 750 |
| 18 July | 750 |
| 25 July | 750 |
| 1 August | 750 |
| 8 August | 750 |
| 15 August | 750 |
| 22 August | 750 |
| 29 August | 700 |
| 5 September | 650 |
| 12 September | 600 |
| 19 September | 600 |
| 26 September | 600 |
| 3 October | 600 |
| 10 October | 600 |
| 17 October | 600 |