| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,260 | $28,149 |
| 2016 | $46,310 | $30,398 |
| 2017 | $47,696 | $30,352 |
| 2018 | $47,696 | $31,523 |
| 2019 | $51,130 | $30,721 |
| 2020 | $52,940 | $32,531 |
| 2021* | $54,523 | $33,787 |
| 2022* | $56,153 | $35,091 |
| 2023* | $57,832 | $36,445 |
| 2024* | $59,561 | $37,852 |
| 2025* | $61,342 | $39,313 |