| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,519 | $30,248 |
| 2016 | $42,716 | $31,251 |
| 2017 | $43,708 | $32,180 |
| 2018 | $43,708 | $31,404 |
| 2019 | $46,758 | $33,321 |
| 2020 | $48,040 | $34,603 |
| 2021* | $49,356 | $35,752 |
| 2022* | $50,709 | $36,939 |
| 2023* | $52,098 | $38,165 |
| 2024* | $53,526 | $39,432 |
| 2025* | $54,992 | $40,741 |
