| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,180 | $20,601 |
| 2016 | $37,579 | $21,017 |
| 2017 | $38,850 | $21,668 |
| 2018 | $38,850 | $21,675 |
| 2019 | $40,600 | $22,205 |
| 2020 | $41,401 | $23,006 |
| 2021* | $42,217 | $23,570 |
| 2022* | $43,048 | $24,147 |
| 2023* | $43,896 | $24,739 |
| 2024* | $44,761 | $25,345 |
| 2025* | $45,643 | $25,966 |
