| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | N/A | N/A |
| 2016 | $31,160 | $22,143 |
| 2017 | $33,284 | $21,748 |
| 2018 | $33,284 | $25,289 |
| 2019 | $33,684 | $21,063 |
| 2020 | $37,464 | $24,843 |
| 2021* | $38,966 | $26,644 |
| 2022* | $40,529 | $28,576 |
| 2023* | $42,154 | $30,648 |
| 2024* | $43,844 | $32,870 |
| 2025* | $45,603 | $35,253 |