| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,825 | $26,752 |
| 2016 | $41,705 | $26,371 |
| 2017 | $42,725 | $25,296 |
| 2018 | $42,725 | $24,771 |
| 2019 | $44,935 | $25,360 |
| 2020 | $46,035 | $26,460 |
| 2021* | $47,163 | $26,084 |
| 2022* | $48,318 | $25,714 |
| 2023* | $49,502 | $25,349 |
| 2024* | $50,715 | $24,989 |
| 2025* | $51,957 | $24,634 |
