| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,764 | $13,757 |
| 2016 | $17,446 | $11,216 |
| 2017 | $17,452 | $12,538 |
| 2018 | $17,452 | $12,800 |
| 2019 | $17,452 | $11,884 |
| 2020 | $18,344 | $12,776 |
| 2021* | $18,344 | $13,043 |
| 2022* | $18,344 | $13,316 |
| 2023* | $18,344 | $13,594 |
| 2024* | $18,344 | $13,878 |
| 2025* | $18,344 | $14,168 |