| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $43,850 | $34,606 |
| 2016 | $43,400 | $35,412 |
| 2017 | $43,485 | $33,524 |
| 2018 | $43,485 | $32,474 |
| 2019 | $48,981 | $37,585 |
| 2020 | $48,017 | $36,621 |
| 2021* | $48,017 | $35,684 |
| 2022* | $48,017 | $34,770 |
| 2023* | $48,017 | $33,880 |
| 2024* | $48,017 | $33,013 |
| 2025* | $48,017 | $32,167 |