| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $67,046 | $36,429 |
| 2016 | $69,442 | $36,283 |
| 2017 | $71,756 | $36,700 |
| 2018 | $71,756 | $36,052 |
| 2019 | $76,600 | $37,830 |
| 2020 | $75,916 | $37,146 |
| 2021* | $78,444 | $36,997 |
| 2022* | $81,056 | $36,849 |
| 2023* | $83,755 | $36,702 |
| 2024* | $86,544 | $36,555 |
| 2025* | $89,426 | $36,409 |