| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | N/A | N/A |
| 2016 | $24,213 | N/A |
| 2017 | $15,913 | N/A |
| 2018 | $15,913 | $12,211 |
| 2019 | $18,281 | $11,652 |
| 2020 | $17,977 | $11,348 |
| 2021* | $17,828 | $10,941 |
| 2022* | $17,680 | $10,548 |
| 2023* | $17,533 | $10,169 |
| 2024* | $17,388 | $9,804 |
| 2025* | $17,243 | $9,452 |