| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,101 | $29,713 |
| 2016 | $36,386 | $29,220 |
| 2017 | $36,020 | $27,766 |
| 2018 | $36,020 | $26,861 |
| 2019 | $36,863 | $23,379 |
| 2020 | $38,352 | $24,868 |
| 2021* | $38,352 | $24,057 |
| 2022* | $38,352 | $23,273 |
| 2023* | $38,352 | $22,514 |
| 2024* | $38,352 | $21,780 |
| 2025* | $38,352 | $21,070 |
