| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $28,928 | N/A |
| 2016 | $29,832 | N/A |
| 2017 | $30,468 | N/A |
| 2018 | $30,468 | N/A |
| 2019 | $33,056 | $22,682 |
| 2020 | $33,700 | $23,326 |
| 2021* | $34,418 | $23,988 |
| 2022* | $35,151 | $24,670 |
| 2023* | $35,900 | $25,370 |
| 2024* | $36,664 | $26,091 |
| 2025* | $37,445 | $26,832 |