| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $57,355 | $28,738 |
| 2016 | $58,845 | $32,780 |
| 2017 | $60,525 | $34,138 |
| 2018 | $60,525 | $33,553 |
| 2019 | $64,050 | $35,928 |
| 2020 | $65,875 | $37,753 |
| 2021* | $67,752 | $39,671 |
| 2022* | $69,683 | $41,686 |
| 2023* | $71,669 | $43,804 |
| 2024* | $73,712 | $46,029 |
| 2025* | $75,813 | $48,367 |