| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,190 | $23,984 |
| 2016 | $41,090 | $26,158 |
| 2017 | $42,048 | $26,555 |
| 2018 | $42,048 | $25,638 |
| 2019 | $43,020 | $27,569 |
| 2020 | $43,648 | $28,197 |
| 2021* | $44,626 | $28,840 |
| 2022* | $45,625 | $29,497 |
| 2023* | $46,647 | $30,170 |
| 2024* | $47,692 | $30,858 |
| 2025* | $48,761 | $31,561 |
