| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $64,245 | $38,012 |
| 2016 | $66,360 | $41,619 |
| 2017 | $68,610 | $43,118 |
| 2018 | $68,610 | $39,475 |
| 2019 | $73,410 | $42,138 |
| 2020 | $75,990 | $44,718 |
| 2021* | $78,566 | $47,455 |
| 2022* | $81,229 | $50,359 |
| 2023* | $83,983 | $53,441 |
| 2024* | $86,830 | $56,712 |
| 2025* | $89,774 | $60,182 |