| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2014 | $45,480 | $28,496 |
| 2015 | $45,548 | $28,564 |
| 2016 | $45,988 | $27,558 |
| 2017 | $46,750 | $27,631 |
| 2018 | $46,750 | $27,200 |
| 2019 | $48,265 | $25,114 |
| 2020* | $48,733 | $24,722 |
| 2021* | $49,206 | $24,337 |
| 2022* | $49,683 | $23,957 |
| 2023* | $50,165 | $23,583 |
| 2024* | $50,652 | $23,215 |
