| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $59,725 | $40,064 |
| 2016 | $62,360 | $39,885 |
| 2017 | $65,330 | $42,385 |
| 2018 | $65,330 | $40,048 |
| 2019 | $69,816 | $36,286 |
| 2020 | $68,311 | $34,781 |
| 2021* | $71,324 | $33,338 |
| 2022* | $74,469 | $31,954 |
| 2023* | $77,753 | $30,628 |
| 2024* | $81,182 | $29,357 |
| 2025* | $84,762 | $28,139 |
