| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,500 | $20,267 |
| 2016 | $41,490 | $21,932 |
| 2017 | $42,540 | $22,081 |
| 2018 | $42,540 | $22,419 |
| 2019 | $45,110 | $23,907 |
| 2020 | $46,970 | $25,767 |
| 2021* | $48,158 | $27,478 |
| 2022* | $49,377 | $29,302 |
| 2023* | $50,626 | $31,248 |
| 2024* | $51,907 | $33,323 |
| 2025* | $53,220 | $35,536 |