| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $26,084 | $21,922 |
| 2016 | $26,084 | $23,607 |
| 2017 | $35,236 | $32,472 |
| 2018 | $35,236 | $32,616 |
| 2019 | $24,964 | $23,289 |
| 2020 | $24,820 | $23,145 |
| 2021* | $24,820 | $23,247 |
| 2022* | $24,820 | $23,349 |
| 2023* | $24,820 | $23,452 |
| 2024* | $24,820 | $23,555 |
| 2025* | $24,820 | $23,659 |