| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,384 | $27,424 |
| 2016 | $48,484 | $27,931 |
| 2017 | $50,632 | $29,468 |
| 2018 | $50,632 | $28,749 |
| 2019 | $53,540 | $27,193 |
| 2020 | $54,540 | $28,193 |
| 2021* | $56,956 | $28,715 |
| 2022* | $59,479 | $29,246 |
| 2023* | $62,114 | $29,787 |
| 2024* | $64,866 | $30,338 |
| 2025* | $67,739 | $30,899 |