| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,809 | $30,507 |
| 2016 | $54,604 | $29,193 |
| 2017 | $56,226 | $26,758 |
| 2018 | $56,226 | $24,908 |
| 2019 | $59,385 | $26,607 |
| 2020 | $58,911 | $26,133 |
| 2021* | $60,661 | $25,007 |
| 2022* | $62,462 | $23,929 |
| 2023* | $64,317 | $22,898 |
| 2024* | $66,228 | $21,911 |
| 2025* | $68,195 | $20,966 |
