| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $21,348 | $8,877 |
| 2016 | $24,210 | $13,315 |
| 2017 | $24,033 | $13,617 |
| 2018 | $24,033 | $12,040 |
| 2019 | $24,753 | $13,950 |
| 2020 | $20,790 | $9,987 |
| 2021* | $20,790 | $10,214 |
| 2022* | $20,790 | $10,446 |
| 2023* | $20,790 | $10,683 |
| 2024* | $20,790 | $10,925 |
| 2025* | $20,790 | $11,173 |
