| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,940 | $28,441 |
| 2016 | $44,336 | $25,985 |
| 2017 | $46,344 | $29,257 |
| 2018 | $46,344 | $26,426 |
| 2019 | $49,636 | $27,258 |
| 2020 | $51,106 | $28,728 |
| 2021* | $52,767 | $29,633 |
| 2022* | $54,482 | $30,566 |
| 2023* | $56,253 | $31,529 |
| 2024* | $58,081 | $32,522 |
| 2025* | $59,968 | $33,547 |
