| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | N/A | N/A |
| 2016 | $32,280 | $19,151 |
| 2017 | $33,830 | $20,895 |
| 2018 | $33,830 | $19,949 |
| 2019 | $35,580 | $20,424 |
| 2020 | $35,220 | $20,064 |
| 2021* | $36,065 | $20,126 |
| 2022* | $36,931 | $20,189 |
| 2023* | $37,817 | $20,251 |
| 2024* | $38,725 | $20,314 |
| 2025* | $39,654 | $20,377 |