| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $47,804 | $32,594 |
| 2016 | $48,672 | $30,703 |
| 2017 | $49,940 | $31,596 |
| 2018 | $49,940 | $32,382 |
| 2019 | $52,100 | $30,693 |
| 2020 | $52,850 | $31,443 |
| 2021* | $53,812 | $32,210 |
| 2022* | $54,791 | $32,996 |
| 2023* | $55,788 | $33,801 |
| 2024* | $56,804 | $34,626 |
| 2025* | $57,838 | $35,471 |