| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,600 | $33,671 |
| 2016 | $49,896 | $27,422 |
| 2017 | $51,404 | $33,553 |
| 2018 | $51,404 | $29,868 |
| 2019 | $54,657 | $28,750 |
| 2020 | $56,378 | $30,471 |
| 2021* | $58,081 | $29,331 |
| 2022* | $59,835 | $28,234 |
| 2023* | $61,642 | $27,178 |
| 2024* | $63,503 | $26,162 |
| 2025* | $65,421 | $25,183 |