| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $33,361 | $26,480 |
| 2016 | $36,620 | $29,982 |
| 2017 | $38,265 | $29,806 |
| 2018 | $38,265 | $29,699 |
| 2019 | $42,094 | $34,525 |
| 2020 | $42,670 | $35,101 |
| 2021* | $44,586 | $35,687 |
| 2022* | $46,588 | $36,283 |
| 2023* | $48,680 | $36,889 |
| 2024* | $50,865 | $37,505 |
| 2025* | $53,149 | $38,131 |
