| Date | Description | Base Date $m | Current $m | Contractor | Notes | |
| Nov 98 | Original Approved | 295.0 |
| 295.0 |
|
|
| Jul 07 | Real Variation - Scope | 154.8 |
| 154.8 |
| 1 |
| Aug 04 | Real Variation - Scope | 360.6 |
| 360.6 |
| 2 |
|
|
| 515.4 |
| 515.4 |
|
|
| Jun 10 | Price Indexation |
|
| 118.9 |
|
|
| Jun 10 | Exchange Variation |
|
| (3.1) |
|
|
| Jun 10 | Total Budget | 810.4 |
| 926.2 |
|
|