| Day | Rate | Set date |
|---|---|---|
| 4 January | 81.4800 | 04.01.1999 |
| 5 January | 81.5300 | 05.01.1999 |
| 6 January | 81.5400 | 06.01.1999 |
| 7 January | 81.0600 | 07.01.1999 |
| 8 January | 80.9900 | 08.01.1999 |
| 9 January | 80.9900 | 08.01.1999 |
| 10 January | 80.9900 | 08.01.1999 |
| 11 January | 80.5500 | 11.01.1999 |
| 12 January | 80.5900 | 12.01.1999 |
| 13 January | 81.2400 | 13.01.1999 |
| 14 January | 80.9300 | 14.01.1999 |
| 15 January | 80.7000 | 15.01.1999 |
| 16 January | 80.7000 | 15.01.1999 |
| 17 January | 80.7000 | 15.01.1999 |
| 18 January | 80.6200 | 18.01.1999 |
| 19 January | 80.5200 | 19.01.1999 |
| 20 January | 80.4900 | 20.01.1999 |
| 21 January | 80.3200 | 21.01.1999 |
| 22 January | 80.4400 | 22.01.1999 |
| 23 January | 80.4400 | 22.01.1999 |
| 24 January | 80.4400 | 22.01.1999 |
| 25 January | 80.2700 | 25.01.1999 |
| 26 January | 80.0400 | 26.01.1999 |
| 27 January | 79.8800 | 27.01.1999 |
| 28 January | 79.6800 | 28.01.1999 |
| 29 January | 79.5900 | 29.01.1999 |
| 30 January | 79.5900 | 29.01.1999 |
| 31 January | 79.5900 | 29.01.1999 |