| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,230 | $28,053 |
| 2016 | $54,024 | $28,477 |
| 2017 | $55,872 | $29,331 |
| 2018 | $55,872 | $28,092 |
| 2019 | $59,572 | $28,541 |
| 2020 | $62,028 | $30,997 |
| 2021* | $64,156 | $31,493 |
| 2022* | $66,356 | $31,997 |
| 2023* | $68,632 | $32,509 |
| 2024* | $70,986 | $33,029 |
| 2025* | $73,421 | $33,557 |