| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $18,590 | $10,943 |
| 2016 | $18,880 | $12,110 |
| 2017 | $18,880 | $11,179 |
| 2018 | $18,880 | $11,994 |
| 2019 | $19,906 | $13,345 |
| 2020 | $19,906 | $13,345 |
| 2021* | $19,906 | $14,318 |
| 2022* | $19,906 | $15,362 |
| 2023* | $19,906 | $16,481 |
| 2024* | $19,906 | $17,683 |
| 2025* | $19,906 | $18,972 |
