| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,735 | $24,305 |
| 2016 | $52,435 | $21,285 |
| 2017 | $54,205 | $23,341 |
| 2018 | $54,205 | $21,713 |
| 2019 | $56,940 | $22,214 |
| 2020 | $57,410 | $22,684 |
| 2021* | $59,333 | $23,165 |
| 2022* | $61,321 | $23,656 |
| 2023* | $63,375 | $24,158 |
| 2024* | $65,498 | $24,670 |
| 2025* | $67,692 | $25,193 |