| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,328 | N/A |
| 2016 | $36,924 | $33,482 |
| 2017 | $37,892 | $30,778 |
| 2018 | $37,892 | N/A |
| 2019 | $39,308 | $33,703 |
| 2020 | $40,532 | $34,927 |
| 2021* | $41,594 | $34,152 |
| 2022* | $42,684 | $33,393 |
| 2023* | $43,802 | $32,652 |
| 2024* | $44,950 | $31,927 |
| 2025* | $46,127 | $31,218 |
