| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,708 | $34,308 |
| 2016 | $53,688 | $36,926 |
| 2017 | $56,358 | $36,871 |
| 2018 | $56,358 | $35,933 |
| 2019 | $61,646 | $39,199 |
| 2020 | $63,605 | $41,158 |
| 2021* | $66,041 | $43,216 |
| 2022* | $68,570 | $45,377 |
| 2023* | $71,197 | $47,646 |
| 2024* | $73,924 | $50,028 |
| 2025* | $76,755 | $52,529 |