| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $25,108 | $18,765 |
| 2016 | $25,717 | $18,400 |
| 2017 | $26,091 | $19,230 |
| 2018 | $26,091 | $19,161 |
| 2019 | $24,703 | $17,131 |
| 2020 | $24,655 | $17,083 |
| 2021* | $24,655 | $17,022 |
| 2022* | $24,655 | $16,960 |
| 2023* | $24,655 | $16,899 |
| 2024* | $24,655 | $16,838 |
| 2025* | $24,655 | $16,778 |