| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,691 | $29,216 |
| 2016 | $38,384 | $29,712 |
| 2017 | $40,719 | $31,716 |
| 2018 | $40,719 | N/A |
| 2019 | $46,814 | $35,688 |
| 2020 | $47,812 | $36,686 |
| 2021* | $50,016 | $37,713 |
| 2022* | $52,322 | $38,769 |
| 2023* | $54,734 | $39,855 |
| 2024* | $57,257 | $40,971 |
| 2025* | $59,897 | $42,118 |