| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $63,003 | $35,966 |
| 2016 | $64,993 | $36,967 |
| 2017 | $67,024 | $39,555 |
| 2018 | $67,024 | $36,605 |
| 2019 | $71,338 | $35,284 |
| 2020 | $71,624 | $35,570 |
| 2021* | $73,859 | $35,858 |
| 2022* | $76,163 | $36,149 |
| 2023* | $78,539 | $36,441 |
| 2024* | $80,990 | $36,737 |
| 2025* | $83,517 | $37,034 |