| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $55,080 | $39,648 |
| 2016 | $56,600 | $41,557 |
| 2017 | $58,440 | $43,407 |
| 2018 | $58,440 | $42,968 |
| 2019 | $62,880 | $44,750 |
| 2020 | $64,692 | $46,562 |
| 2021* | $66,555 | $48,494 |
| 2022* | $68,472 | $50,507 |
| 2023* | $70,444 | $52,603 |
| 2024* | $72,473 | $54,786 |
| 2025* | $74,560 | $57,060 |