| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $22,896 | $15,320 |
| 2016 | $22,886 | $14,641 |
| 2017 | $23,057 | $15,349 |
| 2018 | $23,057 | $15,000 |
| 2019 | $23,954 | $13,063 |
| 2020 | $23,954 | $13,063 |
| 2021* | $23,954 | $12,766 |
| 2022* | $23,954 | $12,477 |
| 2023* | $23,954 | $12,193 |
| 2024* | $23,954 | $11,917 |
| 2025* | $23,954 | $11,646 |