| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $38,444 | $21,033 |
| 2016 | $39,770 | $19,581 |
| 2017 | $41,130 | $19,233 |
| 2018 | $41,130 | $19,662 |
| 2019 | $43,824 | $19,336 |
| 2020 | $45,160 | $20,672 |
| 2021* | $46,704 | $20,329 |
| 2022* | $48,302 | $19,991 |
| 2023* | $49,954 | $19,660 |
| 2024* | $51,662 | $19,333 |
| 2025* | $53,429 | $19,012 |
