| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,488 | $13,052 |
| 2016 | $18,430 | $10,965 |
| 2017 | $18,430 | $12,770 |
| 2018 | $18,430 | $13,208 |
| 2019 | $19,738 | $11,306 |
| 2020 | $20,944 | $12,512 |
| 2021* | $20,944 | $12,941 |
| 2022* | $20,944 | $13,385 |
| 2023* | $20,944 | $13,844 |
| 2024* | $20,944 | $14,319 |
| 2025* | $20,944 | $14,810 |