| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | N/A | N/A |
| 2016 | N/A | N/A |
| 2017 | $29,658 | $21,135 |
| 2018 | $29,658 | $20,172 |
| 2019 | $31,793 | $20,180 |
| 2020 | $32,942 | $21,329 |
| 2021* | $34,131 | $21,338 |
| 2022* | $35,363 | $21,346 |
| 2023* | $36,640 | $21,355 |
| 2024* | $37,963 | $21,363 |
| 2025* | $39,333 | $21,372 |