| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,374 | $26,144 |
| 2016 | $37,889 | $27,024 |
| 2017 | $39,453 | $27,738 |
| 2018 | $39,453 | $27,342 |
| 2019 | $43,019 | $29,243 |
| 2020 | $44,825 | $31,049 |
| 2021* | $46,694 | $32,095 |
| 2022* | $48,641 | $33,177 |
| 2023* | $50,670 | $34,295 |
| 2024* | $52,783 | $35,451 |
| 2025* | $54,984 | $36,645 |
