| Date | Description | Base Date $m | Current $m | Contractor | Notes | |
| Aug 96 | Original Approved | 505.0 |
| 505.0 |
|
|
| Jul 98 | Real Variation - Transfers | 2.3 | 2.3 |
|
| 1 |
| Feb 99 | Real Variation - Transfers | 0.1 | 0.1 |
|
| 2 |
| May 02 | Real Variation - Transfers | 0.9 | 0.9 |
|
| 3 |
| Feb 03 | Real Variation - Transfers | (6.1) | (6.1) |
|
| 4 |
| May 03 | Real Variation - Transfers | (2.0) | (2.0) |
|
| 5 |
| Aug 05 | Real Variation - Budgetary Adjustments | (0.7) | (0.7) |
|
| 6 |
|
|
| 5.5 |
| 5.5 |
| 7 |
| Jun 10 | Price Indexation |
|
| 139.6 |
|
|
| Jun 10 | Exchange Variation |
|
| 12.6 |
|
|
| Jun 10 | Total Budget | 510.5 |
| 662.7 |
|
|