| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $33,740 | $21,437 |
| 2016 | $34,630 | $22,300 |
| 2017 | $34,630 | $23,089 |
| 2018 | $34,630 | $20,628 |
| 2019 | $36,716 | $23,260 |
| 2020 | $37,330 | $23,874 |
| 2021* | $37,953 | $24,719 |
| 2022* | $38,587 | $25,594 |
| 2023* | $39,232 | $26,500 |
| 2024* | $39,887 | $27,438 |
| 2025* | $40,553 | $28,410 |