| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $58,850 | $43,403 |
| 2016 | $60,800 | $43,803 |
| 2017 | $62,850 | $46,028 |
| 2018 | $62,850 | $43,911 |
| 2019 | $67,075 | $45,153 |
| 2020 | $67,170 | $45,248 |
| 2021* | $69,393 | $45,664 |
| 2022* | $71,690 | $46,084 |
| 2023* | $74,063 | $46,508 |
| 2024* | $76,515 | $46,936 |
| 2025* | $79,047 | $47,368 |