| January | February | March | April | May | June | July | August | September | October | November | December | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 1.858 | 1.89 | 1.905 | 1.86 | 1.755 | 1.64 | 1.58 | 1.58 | ||||
| 2022 | 2.203 | 2.184 | 2.298 | 2.553 | 2.473 | 2.358 | 2.218 | 2.153 | 1.998 | 2.023 | 1.978 | 1.95 |
| 2021 | 1.47 | 1.655 | 1.925 | 2.2 | 2.32 | 2.32 | 2.245 | 2.17 | 2.135 | 2.158 | 2.11 | 2.223 |