| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $47,418 | $35,424 |
| 2016 | $49,982 | $41,216 |
| 2017 | $50,436 | $41,144 |
| 2018 | $50,436 | $41,006 |
| 2019 | $51,878 | $41,635 |
| 2020 | $30,774 | $20,531 |
| 2021* | $31,054 | $20,496 |
| 2022* | $31,337 | $20,461 |
| 2023* | $31,622 | $20,426 |
| 2024* | $31,910 | $20,392 |
| 2025* | $32,200 | $20,357 |
