| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,134 | $33,920 |
| 2016 | $50,299 | $33,390 |
| 2017 | $51,467 | $34,186 |
| 2018 | $51,467 | $33,453 |
| 2019 | $53,436 | $31,032 |
| 2020 | $54,469 | $32,065 |
| 2021* | $55,733 | $31,565 |
| 2022* | $57,026 | $31,072 |
| 2023* | $58,349 | $30,588 |
| 2024* | $59,702 | $30,110 |
| 2025* | $61,087 | $29,641 |
