| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,937 | $27,377 |
| 2016 | $53,160 | $28,857 |
| 2017 | $54,155 | $29,476 |
| 2018 | $54,155 | $23,353 |
| 2019 | $39,370 | $27,507 |
| 2020 | $40,350 | $28,487 |
| 2021* | $41,105 | $29,501 |
| 2022* | $41,873 | $30,551 |
| 2023* | $42,656 | $31,639 |
| 2024* | $43,454 | $32,765 |
| 2025* | $44,266 | $33,932 |