| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,135 | $23,574 |
| 2016 | $47,581 | $24,627 |
| 2017 | $48,879 | $26,419 |
| 2018 | $48,879 | $23,372 |
| 2019 | $51,821 | $24,017 |
| 2020 | $53,330 | $25,526 |
| 2021* | $54,882 | $26,667 |
| 2022* | $56,479 | $27,859 |
| 2023* | $58,123 | $29,104 |
| 2024* | $59,814 | $30,405 |
| 2025* | $61,554 | $31,764 |