| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $25,239 | $19,141 |
| 2016 | $25,239 | $18,435 |
| 2017 | $25,239 | $17,706 |
| 2018 | $25,239 | $17,963 |
| 2019 | $24,589 | $17,081 |
| 2020 | $26,252 | $18,744 |
| 2021* | $26,252 | $18,052 |
| 2022* | $26,252 | $17,386 |
| 2023* | $26,252 | $16,745 |
| 2024* | $26,252 | $16,127 |
| 2025* | $26,252 | $15,532 |