| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $60,714 | $34,159 |
| 2016 | $63,018 | $35,200 |
| 2017 | $63,706 | $34,253 |
| 2018 | $63,706 | $33,272 |
| 2019 | $66,626 | $36,742 |
| 2020 | $68,234 | $38,350 |
| 2021* | $69,878 | $39,520 |
| 2022* | $71,563 | $40,725 |
| 2023* | $73,287 | $41,967 |
| 2024* | $75,053 | $43,247 |
| 2025* | $76,862 | $44,566 |
