| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,920 | $32,187 |
| 2016 | $47,510 | $29,869 |
| 2017 | $49,330 | $30,427 |
| 2018 | $49,330 | $31,300 |
| 2019 | $53,150 | $32,158 |
| 2020 | $55,310 | $34,318 |
| 2021* | $57,428 | $35,258 |
| 2022* | $59,628 | $36,224 |
| 2023* | $61,912 | $37,217 |
| 2024* | $64,283 | $38,237 |
| 2025* | $66,745 | $39,284 |