| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $63,666 | $41,159 |
| 2016 | $66,036 | $41,980 |
| 2017 | $69,439 | $43,870 |
| 2018 | $69,439 | $42,768 |
| 2019 | $74,829 | $45,462 |
| 2020 | $72,984 | $43,617 |
| 2021* | $75,699 | $44,485 |
| 2022* | $78,515 | $45,370 |
| 2023* | $81,436 | $46,273 |
| 2024* | $84,465 | $47,194 |
| 2025* | $87,607 | $48,133 |
