| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $56,214 | $26,756 |
| 2016 | $58,120 | $28,912 |
| 2017 | $60,096 | $26,774 |
| 2018 | $60,096 | $24,122 |
| 2019 | $64,060 | $21,904 |
| 2020 | $66,310 | $24,154 |
| 2021* | $68,565 | $22,369 |
| 2022* | $70,896 | $20,716 |
| 2023* | $73,306 | $19,185 |
| 2024* | $75,799 | $17,767 |
| 2025* | $78,376 | $16,454 |