| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $20,948 | $13,818 |
| 2016 | $22,210 | $14,924 |
| 2017 | $22,776 | $14,863 |
| 2018 | $22,776 | $14,481 |
| 2019 | $23,642 | $14,661 |
| 2020 | $23,642 | $14,661 |
| 2021* | $24,245 | $14,661 |
| 2022* | $24,863 | $14,661 |
| 2023* | $25,497 | $14,661 |
| 2024* | $26,147 | $14,661 |
| 2025* | $26,814 | $14,661 |