| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $12,168 | $10,755 |
| 2016 | $12,880 | $8,689 |
| 2017 | $12,553 | $8,135 |
| 2018 | $12,553 | $8,882 |
| 2019 | $12,947 | $8,309 |
| 2020 | $12,480 | $7,842 |
| 2021* | $12,480 | $7,342 |
| 2022* | $12,480 | $6,873 |
| 2023* | $12,480 | $6,435 |
| 2024* | $12,480 | $6,024 |
| 2025* | $12,480 | $5,640 |