| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $21,750 | $13,969 |
| 2016 | $21,679 | $13,701 |
| 2017 | $21,801 | $10,482 |
| 2018 | $21,801 | $14,246 |
| 2019 | $22,866 | $16,013 |
| 2020 | $22,244 | $15,391 |
| 2021* | $22,244 | $15,095 |
| 2022* | $22,244 | $14,806 |
| 2023* | $22,244 | $14,521 |
| 2024* | $22,244 | $14,243 |
| 2025* | $22,244 | $13,969 |