| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,530 | $36,955 |
| 2016 | $56,370 | $36,302 |
| 2017 | $57,680 | $38,169 |
| 2018 | $57,680 | $36,387 |
| 2019 | $60,900 | $35,042 |
| 2020 | $62,220 | $36,362 |
| 2021* | $63,664 | $35,718 |
| 2022* | $65,140 | $35,086 |
| 2023* | $66,652 | $34,465 |
| 2024* | $68,198 | $33,855 |
| 2025* | $69,780 | $33,256 |