| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $22,222 | $17,187 |
| 2016 | $22,254 | $16,672 |
| 2017 | $22,254 | $16,530 |
| 2018 | $22,254 | $16,497 |
| 2019 | $22,548 | $12,840 |
| 2020 | $22,838 | $13,130 |
| 2021* | $22,870 | $13,018 |
| 2022* | $22,902 | $12,908 |
| 2023* | $22,934 | $12,798 |
| 2024* | $22,966 | $12,689 |
| 2025* | $22,998 | $12,581 |
