| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,814 | $30,576 |
| 2016 | $54,695 | $31,411 |
| 2017 | $56,676 | $32,726 |
| 2018 | $56,676 | $30,812 |
| 2019 | $59,452 | $30,308 |
| 2020 | $61,012 | $31,868 |
| 2021* | $63,184 | $32,738 |
| 2022* | $65,433 | $33,632 |
| 2023* | $67,763 | $34,550 |
| 2024* | $70,175 | $35,493 |
| 2025* | $72,673 | $36,462 |