| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $64,612 | $31,555 |
| 2016 | $66,564 | $31,721 |
| 2017 | $68,432 | $31,273 |
| 2018 | $68,432 | $31,715 |
| 2019 | $72,378 | $30,275 |
| 2020 | $74,902 | $32,799 |
| 2021* | $77,164 | $32,973 |
| 2022* | $79,494 | $33,148 |
| 2023* | $81,895 | $33,323 |
| 2024* | $84,368 | $33,500 |
| 2025* | $86,916 | $33,677 |