| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,708 | $35,604 |
| 2016 | $52,242 | $37,378 |
| 2017 | $54,516 | $37,862 |
| 2018 | $54,516 | $36,488 |
| 2019 | $59,176 | $36,472 |
| 2020 | $59,758 | $37,054 |
| 2021* | $62,357 | $37,532 |
| 2022* | $65,070 | $38,016 |
| 2023* | $67,901 | $38,507 |
| 2024* | $70,854 | $39,003 |
| 2025* | $73,936 | $39,506 |