| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $24,502 | $14,393 |
| 2016 | $25,450 | $17,941 |
| 2017 | $21,340 | $14,531 |
| 2018 | $21,340 | $14,273 |
| 2019 | $21,939 | $14,173 |
| 2020 | $21,280 | $13,514 |
| 2021* | $21,280 | $13,273 |
| 2022* | $21,280 | $13,037 |
| 2023* | $21,280 | $12,805 |
| 2024* | $21,280 | $12,577 |
| 2025* | $21,280 | $12,353 |
