| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $61,160 | $22,645 |
| 2016 | $63,670 | $21,906 |
| 2017 | $66,150 | $22,022 |
| 2018 | $66,150 | $18,062 |
| 2019 | $74,150 | $21,962 |
| 2020 | $68,044 | $15,856 |
| 2021* | $70,698 | $15,339 |
| 2022* | $73,455 | $14,839 |
| 2023* | $76,320 | $14,355 |
| 2024* | $79,296 | $13,887 |
| 2025* | $82,389 | $13,435 |