| Day | Rate | Set date |
|---|---|---|
| 1 February | 70.1220 | 01.02.2018 |
| 2 February | 70.2938 | 02.02.2018 |
| 3 February | 70.2938 | 02.02.2018 |
| 4 February | 70.2938 | 02.02.2018 |
| 5 February | 70.4985 | 05.02.2018 |
| 6 February | 70.7106 | 06.02.2018 |
| 7 February | 70.5211 | 07.02.2018 |
| 8 February | 70.8858 | 08.02.2018 |
| 9 February | 71.5055 | 09.02.2018 |
| 10 February | 71.5055 | 09.02.2018 |
| 11 February | 71.5055 | 09.02.2018 |
| 12 February | 71.0851 | 12.02.2018 |
| 13 February | 71.2558 | 13.02.2018 |
| 14 February | 70.8493 | 14.02.2018 |
| 15 February | 70.8097 | 15.02.2018 |
| 16 February | 70.2884 | 16.02.2018 |
| 17 February | 70.2884 | 16.02.2018 |
| 18 February | 70.2884 | 16.02.2018 |
| 19 February | 70.0709 | 19.02.2018 |
| 20 February | 69.9071 | 20.02.2018 |
| 21 February | 69.6656 | 21.02.2018 |
| 22 February | 69.6731 | 22.02.2018 |
| 23 February | 69.4480 | 23.02.2018 |
| 24 February | 69.4480 | 23.02.2018 |
| 25 February | 69.4480 | 23.02.2018 |
| 26 February | 68.9399 | 26.02.2018 |
| 27 February | 68.7975 | 27.02.2018 |
| 28 February | 68.7540 | 28.02.2018 |