| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,285 | $34,123 |
| 2016 | $53,440 | $33,697 |
| 2017 | $54,647 | $34,783 |
| 2018 | $54,647 | $33,373 |
| 2019 | $60,458 | $34,911 |
| 2020 | $62,476 | $36,929 |
| 2021* | $64,563 | $38,118 |
| 2022* | $66,719 | $39,346 |
| 2023* | $68,948 | $40,612 |
| 2024* | $71,250 | $41,920 |
| 2025* | $73,630 | $43,270 |