| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $54,846 | $49,640 |
| 2016 | $32,192 | $26,771 |
| 2017 | $33,192 | $27,631 |
| 2018 | $33,192 | $28,588 |
| 2019 | $37,792 | $32,386 |
| 2020 | $39,672 | $34,266 |
| 2021* | $40,906 | $35,452 |
| 2022* | $42,178 | $36,678 |
| 2023* | $43,490 | $37,947 |
| 2024* | $44,842 | $39,260 |
| 2025* | $46,237 | $40,619 |