| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $27,753 | $21,979 |
| 2016 | $27,753 | $22,196 |
| 2017 | $31,293 | $25,540 |
| 2018 | $31,293 | $24,282 |
| 2019 | $30,531 | $22,429 |
| 2020 | $30,531 | $22,429 |
| 2021* | $30,531 | $22,429 |
| 2022* | $30,531 | $22,429 |
| 2023* | $30,531 | $22,429 |
| 2024* | $30,531 | $22,429 |
| 2025* | $30,531 | $22,429 |