| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,249 | $33,316 |
| 2016 | $53,110 | $35,895 |
| 2017 | $54,859 | $36,474 |
| 2018 | $54,859 | $35,133 |
| 2019 | $59,054 | $35,265 |
| 2020 | $60,629 | $36,840 |
| 2021* | $62,624 | $37,433 |
| 2022* | $64,684 | $38,036 |
| 2023* | $66,812 | $38,648 |
| 2024* | $69,010 | $39,270 |
| 2025* | $71,281 | $39,903 |