| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $56,744 | $37,061 |
| 2016 | $58,520 | $36,828 |
| 2017 | $60,082 | $39,797 |
| 2018 | $60,082 | $36,216 |
| 2019 | $50,199 | $41,253 |
| 2020 | $50,627 | $41,681 |
| 2021* | $51,057 | $42,114 |
| 2022* | $51,491 | $42,552 |
| 2023* | $51,929 | $42,995 |
| 2024* | $52,370 | $43,442 |
| 2025* | $52,816 | $43,894 |
