| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $18,987 | $10,360 |
| 2016 | $18,056 | $10,280 |
| 2017 | $17,982 | $10,576 |
| 2018 | $17,982 | $9,213 |
| 2019 | $18,994 | $9,249 |
| 2020 | $20,921 | $11,176 |
| 2021* | $20,921 | $11,220 |
| 2022* | $20,921 | $11,263 |
| 2023* | $20,921 | $11,307 |
| 2024* | $20,921 | $11,351 |
| 2025* | $20,921 | $11,396 |
