| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,657 | $26,779 |
| 2016 | $43,132 | $26,291 |
| 2017 | $44,150 | $26,681 |
| 2018 | $44,150 | $25,599 |
| 2019 | $46,538 | $26,301 |
| 2020 | $48,234 | $27,997 |
| 2021* | $49,372 | $28,411 |
| 2022* | $50,538 | $28,832 |
| 2023* | $51,730 | $29,259 |
| 2024* | $52,951 | $29,692 |
| 2025* | $54,201 | $30,131 |