| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $17,530 | $12,520 |
| 2016 | $17,680 | $12,190 |
| 2017 | $17,690 | $12,583 |
| 2018 | $17,690 | $12,400 |
| 2019 | $17,690 | $11,066 |
| 2020 | $17,690 | $11,066 |
| 2021* | $17,690 | $10,906 |
| 2022* | $17,690 | $10,747 |
| 2023* | $17,690 | $10,592 |
| 2024* | $17,690 | $10,438 |
| 2025* | $17,690 | $10,287 |