| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,032 | $14,943 |
| 2016 | $18,672 | $14,783 |
| 2017 | $18,528 | $14,974 |
| 2018 | $18,528 | $14,753 |
| 2019 | $18,827 | $14,243 |
| 2020 | $21,184 | $16,600 |
| 2021* | $21,184 | $16,422 |
| 2022* | $21,184 | $16,247 |
| 2023* | $21,184 | $16,073 |
| 2024* | $21,184 | $15,901 |
| 2025* | $21,184 | $15,731 |
