| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $48,380 | $39,135 |
| 2016 | $49,727 | $39,944 |
| 2017 | $51,105 | $41,323 |
| 2018 | $51,105 | $40,774 |
| 2019 | $54,720 | $40,849 |
| 2020 | $57,268 | $43,397 |
| 2021* | $58,860 | $44,295 |
| 2022* | $60,496 | $45,212 |
| 2023* | $62,178 | $46,148 |
| 2024* | $63,907 | $47,103 |
| 2025* | $65,683 | $48,078 |
