| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,166 | $29,729 |
| 2016 | $50,050 | $31,235 |
| 2017 | $51,577 | $31,542 |
| 2018 | $51,577 | $28,200 |
| 2019 | $56,500 | $30,631 |
| 2020 | $58,634 | $32,765 |
| 2021* | $60,422 | $34,426 |
| 2022* | $62,265 | $36,172 |
| 2023* | $64,164 | $38,005 |
| 2024* | $66,121 | $39,932 |
| 2025* | $68,138 | $41,957 |