| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,224 | $23,088 |
| 2016 | $37,062 | $22,794 |
| 2017 | $36,778 | $23,484 |
| 2018 | $36,778 | $23,913 |
| 2019 | $40,187 | $25,334 |
| 2020 | $41,837 | $26,984 |
| 2021* | $41,837 | $27,802 |
| 2022* | $41,837 | $28,644 |
| 2023* | $41,837 | $29,512 |
| 2024* | $41,837 | $30,406 |
| 2025* | $41,837 | $31,327 |