| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $27,100 | $18,911 |
| 2016 | $27,100 | $22,676 |
| 2017 | $26,910 | $22,100 |
| 2018 | $26,910 | $20,981 |
| 2019 | $30,198 | $22,914 |
| 2020 | $31,470 | $24,186 |
| 2021* | $31,470 | $25,528 |
| 2022* | $31,470 | $26,945 |
| 2023* | $31,470 | $28,441 |
| 2024* | $31,470 | $30,019 |
| 2025* | $31,470 | $31,685 |