| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $35,660 | $20,475 |
| 2016 | $36,760 | $22,970 |
| 2017 | $37,780 | $23,304 |
| 2018 | $37,780 | $23,708 |
| 2019 | $39,750 | $22,468 |
| 2020 | $41,822 | $24,540 |
| 2021* | $43,110 | $24,965 |
| 2022* | $44,438 | $25,396 |
| 2023* | $45,807 | $25,836 |
| 2024* | $47,217 | $26,283 |
| 2025* | $48,672 | $26,737 |