| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $23,772 | $17,662 |
| 2016 | $24,557 | $18,267 |
| 2017 | $24,386 | $17,702 |
| 2018 | $24,386 | $17,633 |
| 2019 | $22,727 | $15,501 |
| 2020 | $22,781 | $15,555 |
| 2021* | $22,781 | $15,494 |
| 2022* | $22,781 | $15,434 |
| 2023* | $22,781 | $15,374 |
| 2024* | $22,781 | $15,314 |
| 2025* | $22,781 | $15,254 |
