| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $44,204 | $26,049 |
| 2016 | $45,540 | $26,901 |
| 2017 | $47,050 | $26,931 |
| 2018 | $47,050 | $26,492 |
| 2019 | $49,936 | $28,484 |
| 2020 | $51,316 | $29,864 |
| 2021* | $52,866 | $30,841 |
| 2022* | $54,462 | $31,849 |
| 2023* | $56,107 | $32,891 |
| 2024* | $57,801 | $33,966 |
| 2025* | $59,547 | $35,077 |
