| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $66,572 | $19,715 |
| 2016 | $68,986 | $21,841 |
| 2017 | $71,300 | $23,783 |
| 2018 | $71,300 | $21,833 |
| 2019 | $76,750 | $19,123 |
| 2020 | $79,600 | $21,973 |
| 2021* | $82,489 | $23,926 |
| 2022* | $85,484 | $26,053 |
| 2023* | $88,587 | $28,370 |
| 2024* | $91,803 | $30,892 |
| 2025* | $95,135 | $33,638 |