| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,400 | $31,008 |
| 2016 | $47,330 | $32,097 |
| 2017 | $49,110 | $28,218 |
| 2018 | $49,110 | $30,167 |
| 2019 | $51,274 | $31,530 |
| 2020 | $51,638 | $31,894 |
| 2021* | $52,671 | $33,013 |
| 2022* | $53,724 | $34,172 |
| 2023* | $54,799 | $35,372 |
| 2024* | $55,895 | $36,613 |
| 2025* | $57,013 | $37,898 |
