| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $15,270 | $9,851 |
| 2016 | $19,010 | $15,468 |
| 2017 | $21,010 | $16,099 |
| 2018 | $21,010 | $16,545 |
| 2019 | $19,010 | $13,851 |
| 2020 | $19,010 | $13,851 |
| 2021* | $19,010 | $14,235 |
| 2022* | $19,010 | $14,629 |
| 2023* | $19,010 | $15,034 |
| 2024* | $19,010 | $15,451 |
| 2025* | $19,010 | $15,879 |