| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $15,839 | $11,109 |
| 2016 | $15,839 | $10,599 |
| 2017 | $15,799 | $11,591 |
| 2018 | $15,799 | $10,693 |
| 2019 | $17,419 | $10,067 |
| 2020 | $17,416 | $10,064 |
| 2021* | $17,416 | $9,602 |
| 2022* | $17,416 | $9,161 |
| 2023* | $17,416 | $8,741 |
| 2024* | $17,416 | $8,340 |
| 2025* | $17,416 | $7,957 |