| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,032 | $15,005 |
| 2016 | $18,672 | $14,605 |
| 2017 | $18,528 | $14,363 |
| 2018 | $18,528 | $14,286 |
| 2019 | $18,827 | $13,878 |
| 2020 | $21,184 | $16,235 |
| 2021* | $21,184 | $15,965 |
| 2022* | $21,184 | $15,700 |
| 2023* | $21,184 | $15,440 |
| 2024* | $21,184 | $15,184 |
| 2025* | $21,184 | $14,931 |
