| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,940 | $32,678 |
| 2016 | $54,930 | $31,547 |
| 2017 | $57,390 | $31,966 |
| 2018 | $57,390 | $31,160 |
| 2019 | $60,792 | $30,717 |
| 2020 | $62,212 | $32,137 |
| 2021* | $64,551 | $31,681 |
| 2022* | $66,978 | $31,231 |
| 2023* | $69,497 | $30,787 |
| 2024* | $72,110 | $30,350 |
| 2025* | $74,821 | $29,919 |
