| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $66,120 | $36,296 |
| 2016 | $68,420 | $33,431 |
| 2017 | $70,760 | $41,727 |
| 2018 | $70,760 | $35,007 |
| 2019 | $75,950 | $41,238 |
| 2020 | $78,764 | $44,052 |
| 2021* | $81,505 | $47,056 |
| 2022* | $84,341 | $50,266 |
| 2023* | $87,276 | $53,694 |
| 2024* | $90,314 | $57,356 |
| 2025* | $93,457 | $61,267 |