| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $23,840 | $17,129 |
| 2016 | $23,840 | $14,152 |
| 2017 | $23,840 | $13,580 |
| 2018 | $23,840 | $14,426 |
| 2019 | $25,280 | $14,211 |
| 2020 | $25,280 | $14,211 |
| 2021* | $25,280 | $13,999 |
| 2022* | $25,280 | $13,791 |
| 2023* | $25,280 | $13,585 |
| 2024* | $25,280 | $13,383 |
| 2025* | $25,280 | $13,183 |