| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $54,143 | $32,764 |
| 2016 | $56,455 | $34,428 |
| 2017 | $59,392 | $36,097 |
| 2018 | $59,392 | $36,122 |
| 2019 | $63,195 | $36,694 |
| 2020 | $65,500 | $38,999 |
| 2021* | $68,297 | $40,890 |
| 2022* | $71,213 | $42,874 |
| 2023* | $74,254 | $44,953 |
| 2024* | $77,425 | $47,133 |
| 2025* | $80,731 | $49,419 |