| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $25,784 | $14,959 |
| 2016 | $26,108 | $17,809 |
| 2017 | $27,355 | $19,255 |
| 2018 | $27,355 | $18,831 |
| 2019 | $26,008 | $17,383 |
| 2020 | $24,134 | $15,509 |
| 2021* | $24,134 | $15,168 |
| 2022* | $24,134 | $14,834 |
| 2023* | $24,134 | $14,508 |
| 2024* | $24,134 | $14,189 |
| 2025* | $24,134 | $13,876 |