| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,806 | $24,856 |
| 2016 | $42,940 | $24,867 |
| 2017 | $44,408 | $25,066 |
| 2018 | $44,408 | $21,718 |
| 2019 | $46,876 | $26,762 |
| 2020 | $48,172 | $28,058 |
| 2021* | $49,502 | $28,282 |
| 2022* | $50,868 | $28,509 |
| 2023* | $52,272 | $28,737 |
| 2024* | $53,714 | $28,967 |
| 2025* | $55,197 | $29,198 |
