| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $35,445 | $30,237 |
| 2016 | $30,974 | $24,727 |
| 2017 | $34,794 | $28,954 |
| 2018 | $34,794 | $28,060 |
| 2019 | $33,114 | $26,161 |
| 2020 | $39,400 | $32,447 |
| 2021* | $39,400 | $31,444 |
| 2022* | $39,400 | $30,473 |
| 2023* | $39,400 | $29,531 |
| 2024* | $39,400 | $28,619 |
| 2025* | $39,400 | $27,734 |