| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $48,398 | $21,864 |
| 2016 | $34,098 | $5,353 |
| 2017 | $34,464 | $3,850 |
| 2018 | $34,464 | $21,331 |
| 2019 | $36,338 | $23,681 |
| 2020 | $36,798 | $24,141 |
| 2021* | $37,192 | $24,609 |
| 2022* | $37,590 | $25,087 |
| 2023* | $37,992 | $25,573 |
| 2024* | $38,398 | $26,070 |
| 2025* | $38,809 | $26,575 |