| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $61,005 | $35,885 |
| 2016 | $63,350 | $37,693 |
| 2017 | $66,180 | $40,837 |
| 2018 | $66,180 | $39,615 |
| 2019 | $71,320 | $44,297 |
| 2020 | $73,985 | $46,962 |
| 2021* | $76,826 | $49,789 |
| 2022* | $79,776 | $52,786 |
| 2023* | $82,840 | $55,964 |
| 2024* | $86,021 | $59,333 |
| 2025* | $89,324 | $62,905 |