| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $65,686 | $50,992 |
| 2016 | $66,799 | $51,832 |
| 2017 | $68,993 | $54,668 |
| 2018 | $68,993 | $53,592 |
| 2019 | $73,980 | $57,329 |
| 2020 | $74,931 | $58,280 |
| 2021* | $76,197 | $59,247 |
| 2022* | $77,485 | $60,231 |
| 2023* | $78,795 | $61,231 |
| 2024* | $80,126 | $62,247 |
| 2025* | $81,480 | $63,281 |