| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,628 | $26,976 |
| 2016 | $45,146 | $28,058 |
| 2017 | $46,824 | $28,256 |
| 2018 | $46,824 | $29,414 |
| 2019 | $49,237 | $25,582 |
| 2020 | $49,513 | $25,858 |
| 2021* | $51,355 | $26,137 |
| 2022* | $53,265 | $26,420 |
| 2023* | $55,247 | $26,705 |
| 2024* | $57,302 | $26,993 |
| 2025* | $59,434 | $27,285 |