| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $24,050 | N/A |
| 2016 | $26,480 | N/A |
| 2017 | $26,659 | N/A |
| 2018 | $26,659 | N/A |
| 2019 | $28,524 | $22,579 |
| 2020 | $28,526 | $22,581 |
| 2021* | $28,720 | $22,583 |
| 2022* | $28,915 | $22,586 |
| 2023* | $29,112 | $22,588 |
| 2024* | $29,310 | $22,590 |
| 2025* | $29,509 | $22,592 |
