| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $44,628 | $24,294 |
| 2016 | $46,114 | $26,482 |
| 2017 | $47,664 | $26,370 |
| 2018 | $47,664 | $24,352 |
| 2019 | $51,972 | $25,237 |
| 2020 | $54,902 | $28,167 |
| 2021* | $56,747 | $29,189 |
| 2022* | $58,653 | $30,249 |
| 2023* | $60,624 | $31,347 |
| 2024* | $62,661 | $32,485 |
| 2025* | $64,767 | $33,664 |