| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $47,955 | $30,377 |
| 2016 | $49,755 | $28,826 |
| 2017 | $52,256 | $29,694 |
| 2018 | $52,256 | $28,759 |
| 2019 | $55,772 | $33,012 |
| 2020 | $58,396 | $35,636 |
| 2021* | $61,141 | $36,709 |
| 2022* | $64,014 | $37,814 |
| 2023* | $67,023 | $38,952 |
| 2024* | $70,173 | $40,124 |
| 2025* | $73,471 | $41,332 |