| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $55,555 | $35,335 |
| 2016 | $55,524 | $35,834 |
| 2017 | $57,067 | $36,045 |
| 2018 | $57,067 | $36,102 |
| 2019 | $59,962 | $36,798 |
| 2020 | $60,153 | $36,989 |
| 2021* | $60,345 | $37,207 |
| 2022* | $60,539 | $37,427 |
| 2023* | $60,732 | $37,648 |
| 2024* | $60,927 | $37,870 |
| 2025* | $61,122 | $38,093 |