| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $34,698 | $29,053 |
| 2016 | $35,649 | N/A |
| 2017 | $36,622 | $33,859 |
| 2018 | $36,622 | $35,722 |
| 2019 | $39,700 | $35,137 |
| 2020 | $41,896 | $37,333 |
| 2021* | $43,044 | $39,386 |
| 2022* | $44,223 | $41,553 |
| 2023* | $45,435 | $43,838 |
| 2024* | $46,680 | $46,249 |
| 2025* | $47,959 | $48,793 |
