| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,394 | $28,130 |
| 2016 | $47,336 | $29,088 |
| 2017 | $49,099 | $30,989 |
| 2018 | $49,099 | $30,024 |
| 2019 | $52,967 | $29,519 |
| 2020 | $54,912 | $31,464 |
| 2021* | $56,955 | $32,537 |
| 2022* | $59,073 | $33,646 |
| 2023* | $61,271 | $34,794 |
| 2024* | $63,550 | $35,980 |
| 2025* | $65,914 | $37,207 |
