| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,980 | $27,609 |
| 2016 | $44,196 | $29,445 |
| 2017 | $46,028 | $29,695 |
| 2018 | $46,028 | $27,884 |
| 2019 | $50,640 | $29,155 |
| 2020 | $50,920 | $29,435 |
| 2021* | $53,033 | $29,718 |
| 2022* | $55,234 | $30,003 |
| 2023* | $57,526 | $30,291 |
| 2024* | $59,914 | $30,582 |
| 2025* | $62,400 | $30,875 |