| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,663 | $36,617 |
| 2016 | $43,207 | $38,530 |
| 2017 | $45,836 | $41,446 |
| 2018 | $45,836 | $38,890 |
| 2019 | $46,704 | $39,833 |
| 2020 | $47,306 | $40,435 |
| 2021* | $48,200 | $41,414 |
| 2022* | $49,111 | $42,416 |
| 2023* | $50,039 | $43,442 |
| 2024* | $50,985 | $44,493 |
| 2025* | $51,949 | $45,570 |
