| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,840 | $29,660 |
| 2016 | $48,220 | $29,343 |
| 2017 | $49,688 | $30,292 |
| 2018 | $49,688 | $29,067 |
| 2019 | $53,764 | $31,010 |
| 2020 | $55,674 | $32,920 |
| 2021* | $57,366 | $33,983 |
| 2022* | $59,110 | $35,081 |
| 2023* | $60,907 | $36,214 |
| 2024* | $62,759 | $37,384 |
| 2025* | $64,667 | $38,591 |