| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,029 | $21,657 |
| 2016 | $38,551 | $20,704 |
| 2017 | $40,418 | $24,729 |
| 2018 | $40,418 | $21,884 |
| 2019 | $44,194 | $25,267 |
| 2020 | $45,216 | $26,289 |
| 2021* | $47,074 | $27,351 |
| 2022* | $49,009 | $28,456 |
| 2023* | $51,023 | $29,606 |
| 2024* | $53,120 | $30,802 |
| 2025* | $55,304 | $32,046 |
