| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $13,959 | $8,849 |
| 2016 | $13,959 | $9,645 |
| 2017 | $13,959 | $8,672 |
| 2018 | $13,959 | $7,436 |
| 2019 | $14,512 | $9,383 |
| 2020 | $16,219 | $11,090 |
| 2021* | $16,219 | $12,088 |
| 2022* | $16,219 | $13,176 |
| 2023* | $16,219 | $14,362 |
| 2024* | $16,219 | $15,654 |
| 2025* | $16,219 | $17,063 |