| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $22,614 | $16,804 |
| 2016 | $22,614 | $16,102 |
| 2017 | $23,080 | $17,147 |
| 2018 | $23,080 | $16,527 |
| 2019 | $22,894 | $14,695 |
| 2020 | $23,144 | $14,945 |
| 2021* | $23,144 | $14,404 |
| 2022* | $23,144 | $13,883 |
| 2023* | $23,144 | $13,380 |
| 2024* | $23,144 | $12,896 |
| 2025* | $23,144 | $12,429 |
