| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $22,103 | $14,009 |
| 2016 | $22,008 | $13,283 |
| 2017 | $22,486 | $13,401 |
| 2018 | $22,486 | $14,424 |
| 2019 | $24,388 | $14,891 |
| 2020 | $23,295 | $13,798 |
| 2021* | $23,295 | $13,921 |
| 2022* | $23,295 | $14,045 |
| 2023* | $23,295 | $14,170 |
| 2024* | $23,295 | $14,296 |
| 2025* | $23,295 | $14,423 |
