| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $39,860 | $25,302 |
| 2016 | $41,574 | $24,786 |
| 2017 | $42,904 | $26,790 |
| 2018 | $42,904 | $27,349 |
| 2019 | $42,820 | $22,819 |
| 2020 | $43,770 | $23,769 |
| 2021* | $44,742 | $24,266 |
| 2022* | $45,735 | $24,773 |
| 2023* | $46,750 | $25,291 |
| 2024* | $47,788 | $25,819 |
| 2025* | $48,849 | $26,359 |