| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $62,332 | $33,531 |
| 2016 | $64,018 | $34,069 |
| 2017 | $66,106 | $35,377 |
| 2018 | $66,106 | $33,566 |
| 2019 | $70,228 | $32,692 |
| 2020 | $72,270 | $34,734 |
| 2021* | $74,373 | $35,290 |
| 2022* | $76,537 | $35,854 |
| 2023* | $78,765 | $36,428 |
| 2024* | $81,057 | $37,011 |
| 2025* | $83,415 | $37,603 |