| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $22,927 | $17,072 |
| 2016 | $22,927 | $16,919 |
| 2017 | $22,860 | $16,509 |
| 2018 | $22,860 | $16,212 |
| 2019 | $23,497 | $16,375 |
| 2020 | $23,979 | $16,857 |
| 2021* | $23,979 | $16,705 |
| 2022* | $23,979 | $16,555 |
| 2023* | $23,979 | $16,406 |
| 2024* | $23,979 | $16,258 |
| 2025* | $23,979 | $16,112 |
