| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,308 | $33,803 |
| 2016 | $54,033 | $37,569 |
| 2017 | $56,040 | $37,465 |
| 2018 | $56,040 | $36,533 |
| 2019 | $61,216 | $38,983 |
| 2020 | $62,760 | $40,527 |
| 2021* | $64,831 | $42,132 |
| 2022* | $66,971 | $43,800 |
| 2023* | $69,181 | $45,535 |
| 2024* | $71,463 | $47,338 |
| 2025* | $73,822 | $49,213 |
