| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $57,790 | $35,355 |
| 2016 | $59,248 | $35,143 |
| 2017 | $60,360 | $34,452 |
| 2018 | $60,360 | $33,609 |
| 2019 | $63,602 | $36,237 |
| 2020 | $65,186 | $37,821 |
| 2021* | $66,809 | $37,594 |
| 2022* | $68,473 | $37,369 |
| 2023* | $70,178 | $37,144 |
| 2024* | $71,925 | $36,921 |
| 2025* | $73,716 | $36,700 |
