| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $56,990 | $35,685 |
| 2016 | $58,256 | $36,197 |
| 2017 | $59,650 | $35,129 |
| 2018 | $59,650 | $35,890 |
| 2019 | $60,150 | $34,144 |
| 2020 | $58,446 | $32,440 |
| 2021* | $58,937 | $31,483 |
| 2022* | $59,432 | $30,554 |
| 2023* | $59,931 | $29,653 |
| 2024* | $60,435 | $28,778 |
| 2025* | $60,942 | $27,929 |
