| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $21,739 | $12,709 |
| 2016 | $22,192 | $11,995 |
| 2017 | $23,715 | $16,213 |
| 2018 | $23,715 | $17,255 |
| 2019 | $24,693 | $16,804 |
| 2020 | $24,693 | $16,804 |
| 2021* | $25,207 | $16,804 |
| 2022* | $25,731 | $16,804 |
| 2023* | $26,266 | $16,804 |
| 2024* | $26,812 | $16,804 |
| 2025* | $27,370 | $16,804 |