| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $62,710 | $22,166 |
| 2016 | $63,435 | $46,953 |
| 2017 | $65,045 | $40,175 |
| 2018 | $65,045 | $32,593 |
| 2019 | $66,713 | $31,795 |
| 2020 | $68,305 | $33,387 |
| 2021* | $69,937 | $32,569 |
| 2022* | $71,609 | $31,771 |
| 2023* | $73,320 | $30,993 |
| 2024* | $75,073 | $30,233 |
| 2025* | $76,867 | $29,493 |