| 23 April 2007 - 14 December 2007 |
$1,169 / £581 / €840 |
| 15 December 2007 - 4 January 2008 |
$1,535 / £763 / €1,099 |
| 5 January 2008 - 4 April 2008 |
$1,570 / £770 / €1,104 |
| 5 April 2008 - 14 December 2008 |
$1,216 / £610 / €899 |
| 15 December 2008 - 5 January 2009 |
$1,683 / £825 / €1,183 |
