| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $25,840 | $15,773 |
| 2016 | $24,992 | $16,984 |
| 2017 | $25,772 | $15,209 |
| 2018 | $25,772 | $15,372 |
| 2019 | $27,742 | $16,691 |
| 2020 | $27,555 | $16,504 |
| 2021* | $27,555 | $16,681 |
| 2022* | $27,555 | $16,859 |
| 2023* | $27,555 | $17,039 |
| 2024* | $27,555 | $17,222 |
| 2025* | $27,555 | $17,406 |