| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,328 | N/A |
| 2016 | $36,924 | N/A |
| 2017 | $37,892 | $32,117 |
| 2018 | $37,892 | $30,027 |
| 2019 | $39,308 | $37,155 |
| 2020 | $40,196 | $38,043 |
| 2021* | $41,104 | $38,952 |
| 2022* | $42,033 | $39,883 |
| 2023* | $42,983 | $40,836 |
| 2024* | $43,955 | $41,812 |
| 2025* | $44,948 | $42,812 |
