| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $32,416 | $28,434 |
| 2016 | $32,416 | $21,909 |
| 2017 | $32,416 | $22,002 |
| 2018 | $32,416 | $26,408 |
| 2019 | $32,112 | $18,329 |
| 2020 | $31,306 | $17,523 |
| 2021* | $31,306 | $16,752 |
| 2022* | $31,306 | $16,015 |
| 2023* | $31,306 | $15,310 |
| 2024* | $31,306 | $14,637 |
| 2025* | $31,306 | $13,993 |