| Day | Rate | Set date |
|---|---|---|
| 2 May | 76.4000 | 02.05.2018 |
| 3 May | 76.0875 | 03.05.2018 |
| 4 May | 75.4816 | 04.05.2018 |
| 5 May | 75.4816 | 04.05.2018 |
| 6 May | 75.4816 | 04.05.2018 |
| 7 May | 74.8299 | 07.05.2018 |
| 8 May | 75.1187 | 08.05.2018 |
| 9 May | 74.9194 | 09.05.2018 |
| 10 May | 73.7070 | 10.05.2018 |
| 11 May | 73.5704 | 11.05.2018 |
| 12 May | 73.5704 | 11.05.2018 |
| 13 May | 73.5704 | 11.05.2018 |
| 14 May | 73.8057 | 14.05.2018 |
| 15 May | 73.8220 | 15.05.2018 |
| 16 May | 73.5977 | 16.05.2018 |
| 17 May | 73.1549 | 17.05.2018 |
| 18 May | 73.2150 | 18.05.2018 |
| 19 May | 73.2150 | 18.05.2018 |
| 20 May | 73.2150 | 18.05.2018 |
| 21 May | 73.3644 | 21.05.2018 |
| 22 May | 72.3491 | 22.05.2018 |
| 23 May | 72.2643 | 23.05.2018 |
| 24 May | 72.1879 | 24.05.2018 |
| 25 May | 72.4935 | 25.05.2018 |
| 26 May | 72.4935 | 25.05.2018 |
| 27 May | 72.4935 | 25.05.2018 |
| 28 May | 72.6316 | 28.05.2018 |
| 29 May | 72.3479 | 29.05.2018 |
| 30 May | 72.3836 | 30.05.2018 |
| 31 May | 72.5759 | 31.05.2018 |