| Day | Rate | Set date |
|---|---|---|
| 1 February | 136.6200 | 01.02.2018 |
| 2 February | 137.2200 | 02.02.2018 |
| 3 February | 137.2200 | 02.02.2018 |
| 4 February | 137.2200 | 02.02.2018 |
| 5 February | 136.6700 | 05.02.2018 |
| 6 February | 134.9700 | 06.02.2018 |
| 7 February | 134.8400 | 07.02.2018 |
| 8 February | 134.3100 | 08.02.2018 |
| 9 February | 133.5900 | 09.02.2018 |
| 10 February | 133.5900 | 09.02.2018 |
| 11 February | 133.5900 | 09.02.2018 |
| 12 February | 133.2300 | 12.02.2018 |
| 13 February | 132.8200 | 13.02.2018 |
| 14 February | 132.4000 | 14.02.2018 |
| 15 February | 133.1100 | 15.02.2018 |
| 16 February | 132.3400 | 16.02.2018 |
| 17 February | 132.3400 | 16.02.2018 |
| 18 February | 132.3400 | 16.02.2018 |
| 19 February | 132.2400 | 19.02.2018 |
| 20 February | 132.2500 | 20.02.2018 |
| 21 February | 132.4100 | 21.02.2018 |
| 22 February | 131.4700 | 22.02.2018 |
| 23 February | 131.2800 | 23.02.2018 |
| 24 February | 131.2800 | 23.02.2018 |
| 25 February | 131.2800 | 23.02.2018 |
| 26 February | 131.6000 | 26.02.2018 |
| 27 February | 131.7700 | 27.02.2018 |
| 28 February | 130.7200 | 28.02.2018 |