| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,670 | $35,483 |
| 2016 | $48,099 | $36,364 |
| 2017 | $49,642 | $37,436 |
| 2018 | $49,642 | $35,581 |
| 2019 | $52,756 | $38,647 |
| 2020 | $54,562 | $40,453 |
| 2021* | $56,313 | $41,646 |
| 2022* | $58,121 | $42,875 |
| 2023* | $59,987 | $44,140 |
| 2024* | $61,912 | $45,442 |
| 2025* | $63,900 | $46,782 |
