| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $30,704 | $16,153 |
| 2016 | $31,404 | $15,563 |
| 2017 | $32,358 | $19,019 |
| 2018 | $32,358 | $18,791 |
| 2019 | $33,770 | $15,493 |
| 2020 | $34,340 | $16,063 |
| 2021* | $35,123 | $15,870 |
| 2022* | $35,924 | $15,680 |
| 2023* | $36,743 | $15,492 |
| 2024* | $37,581 | $15,306 |
| 2025* | $38,437 | $15,122 |