| Day | Rate | Set date |
|---|---|---|
| 1 May | 8.9075 | 30.04.1999 |
| 2 May | 8.9075 | 30.04.1999 |
| 3 May | 8.9185 | 03.05.1999 |
| 4 May | 8.9485 | 04.05.1999 |
| 5 May | 8.9845 | 05.05.1999 |
| 6 May | 9.0050 | 06.05.1999 |
| 7 May | 8.9575 | 07.05.1999 |
| 8 May | 8.9575 | 07.05.1999 |
| 9 May | 8.9575 | 07.05.1999 |
| 10 May | 8.9445 | 10.05.1999 |
| 11 May | 8.9420 | 11.05.1999 |
| 12 May | 8.9440 | 12.05.1999 |
| 13 May | 8.9634 | 13.05.1999 |
| 14 May | 8.9490 | 14.05.1999 |
| 15 May | 8.9490 | 14.05.1999 |
| 16 May | 8.9490 | 14.05.1999 |
| 17 May | 8.9775 | 17.05.1999 |
| 18 May | 9.0030 | 18.05.1999 |
| 19 May | 9.0280 | 19.05.1999 |
| 20 May | 8.9965 | 20.05.1999 |
| 21 May | 8.9620 | 21.05.1999 |
| 22 May | 8.9620 | 21.05.1999 |
| 23 May | 8.9620 | 21.05.1999 |
| 24 May | 8.9754 | 24.05.1999 |
| 25 May | 8.9895 | 25.05.1999 |
| 26 May | 8.9870 | 26.05.1999 |
| 27 May | 8.9780 | 27.05.1999 |
| 28 May | 8.9950 | 28.05.1999 |
| 29 May | 8.9950 | 28.05.1999 |
| 30 May | 8.9950 | 28.05.1999 |
| 31 May | 8.9680 | 31.05.1999 |