| Month | DFL Surcharge Percentage |
| May 2023 | 21.55 |
| June 2023 | 19.92 |
| July 2023 | 18.37 |
| August 2023 | 17.89 |
| September 2023 | 23.63 |
| October 2023 | 26.45 |
| November 2023 | 27.89 |
| December 2023 | 26.41 |
| January 2024 | 23.32 |
| February 2024 | 21.30 |
| March 2024 | 20.34 |
| April 2024 | 20.78 |
| May 2024 | 20.73 |
