| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $59,756 | $42,398 |
| 2016 | $61,652 | $43,440 |
| 2017 | $63,510 | $44,188 |
| 2018 | $63,510 | $41,976 |
| 2019 | $68,146 | $41,638 |
| 2020 | $69,661 | $43,153 |
| 2021* | $71,758 | $43,895 |
| 2022* | $73,918 | $44,650 |
| 2023* | $76,143 | $45,418 |
| 2024* | $78,435 | $46,199 |
| 2025* | $80,795 | $46,994 |
