| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $65,654 | $31,019 |
| 2016 | $68,125 | $35,303 |
| 2017 | $70,588 | $36,782 |
| 2018 | $70,588 | $35,101 |
| 2019 | $75,796 | $39,810 |
| 2020 | $75,810 | $39,824 |
| 2021* | $78,554 | $41,493 |
| 2022* | $81,398 | $43,231 |
| 2023* | $84,345 | $45,043 |
| 2024* | $87,398 | $46,930 |
| 2025* | $90,562 | $48,896 |