| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,980 | $29,824 |
| 2016 | $52,410 | $29,814 |
| 2017 | $54,180 | $29,806 |
| 2018 | $54,180 | $28,842 |
| 2019 | $57,470 | $29,830 |
| 2020 | $59,320 | $31,680 |
| 2021* | $61,230 | $31,670 |
| 2022* | $63,202 | $31,661 |
| 2023* | $65,237 | $31,651 |
| 2024* | $67,337 | $31,642 |
| 2025* | $69,506 | $31,633 |