| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,120 | $22,744 |
| 2016 | $41,880 | $22,673 |
| 2017 | $42,794 | $27,281 |
| 2018 | $42,794 | $23,526 |
| 2019 | $43,880 | $21,552 |
| 2020 | $44,380 | $22,052 |
| 2021* | $45,201 | $21,984 |
| 2022* | $46,037 | $21,915 |
| 2023* | $46,889 | $21,848 |
| 2024* | $47,756 | $21,780 |
| 2025* | $48,640 | $21,712 |
