| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $58,270 | $38,805 |
| 2016 | $60,420 | $37,989 |
| 2017 | $62,970 | $38,271 |
| 2018 | $62,970 | $38,106 |
| 2019 | $68,414 | $40,508 |
| 2020 | $71,828 | $43,922 |
| 2021* | $74,859 | $44,247 |
| 2022* | $78,018 | $44,574 |
| 2023* | $81,311 | $44,904 |
| 2024* | $84,742 | $45,237 |
| 2025* | $88,318 | $45,571 |