| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $38,910 | $22,590 |
| 2016 | $39,820 | $23,231 |
| 2017 | $40,720 | $22,787 |
| 2018 | $40,720 | $22,724 |
| 2019 | $44,410 | $24,777 |
| 2020 | $45,670 | $26,037 |
| 2021* | $46,739 | $26,776 |
| 2022* | $47,832 | $27,537 |
| 2023* | $48,952 | $28,319 |
| 2024* | $50,097 | $29,123 |
| 2025* | $51,269 | $29,950 |
