| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,660 | $28,601 |
| 2016 | $47,082 | $26,943 |
| 2017 | $49,003 | $29,713 |
| 2018 | $49,003 | $30,865 |
| 2019 | $53,000 | $33,225 |
| 2020 | $53,233 | $33,458 |
| 2021* | $54,889 | $34,756 |
| 2022* | $56,596 | $36,105 |
| 2023* | $58,356 | $37,506 |
| 2024* | $60,171 | $38,961 |
| 2025* | $62,042 | $40,472 |