| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,750 | $23,020 |
| 2016 | $43,642 | $23,549 |
| 2017 | $44,732 | $24,604 |
| 2018 | $44,732 | $21,474 |
| 2019 | $45,810 | $21,646 |
| 2020 | $47,512 | $23,348 |
| 2021* | $48,657 | $23,885 |
| 2022* | $49,830 | $24,434 |
| 2023* | $51,031 | $24,996 |
| 2024* | $52,260 | $25,571 |
| 2025* | $53,520 | $26,159 |
