| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,970 | $40,294 |
| 2016 | $51,950 | $42,294 |
| 2017 | $54,770 | $45,528 |
| 2018 | $54,770 | $44,589 |
| 2019 | $59,194 | $47,373 |
| 2020 | $60,950 | $49,129 |
| 2021* | $63,364 | $51,566 |
| 2022* | $65,873 | $54,123 |
| 2023* | $68,481 | $56,808 |
| 2024* | $71,193 | $59,626 |
| 2025* | $74,012 | $62,583 |