| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $24,511 | $16,582 |
| 2016 | $25,253 | $16,816 |
| 2017 | $26,513 | $17,576 |
| 2018 | $26,513 | $17,463 |
| 2019 | $26,434 | $18,657 |
| 2020 | $25,166 | $17,389 |
| 2021* | $25,166 | $17,634 |
| 2022* | $25,166 | $17,883 |
| 2023* | $25,166 | $18,135 |
| 2024* | $25,166 | $18,391 |
| 2025* | $25,166 | $18,650 |
