| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,471 | $16,084 |
| 2016 | $18,491 | $15,501 |
| 2017 | $19,888 | $16,491 |
| 2018 | $19,888 | $16,681 |
| 2019 | $18,333 | $15,083 |
| 2020 | $18,663 | $15,413 |
| 2021* | $18,663 | $15,590 |
| 2022* | $18,663 | $15,770 |
| 2023* | $18,663 | $15,951 |
| 2024* | $18,663 | $16,134 |
| 2025* | $18,663 | $16,320 |
