| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $31,788 | $28,493 |
| 2016 | $33,158 | $28,903 |
| 2017 | $33,158 | $26,890 |
| 2018 | $33,158 | $28,470 |
| 2019 | $33,158 | $24,041 |
| 2020 | $33,658 | $24,541 |
| 2021* | $33,658 | $24,894 |
| 2022* | $33,658 | $25,253 |
| 2023* | $33,658 | $25,617 |
| 2024* | $33,658 | $25,985 |
| 2025* | $33,658 | $26,360 |