| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,952 | $23,687 |
| 2016 | $39,388 | $25,330 |
| 2017 | $40,575 | $27,281 |
| 2018 | $40,575 | $24,742 |
| 2019 | $42,800 | $25,390 |
| 2020 | $44,422 | $27,012 |
| 2021* | $46,101 | $28,738 |
| 2022* | $47,844 | $30,574 |
| 2023* | $49,652 | $32,528 |
| 2024* | $51,529 | $34,607 |
| 2025* | $53,477 | $36,818 |
