| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,700 | $40,290 |
| 2016 | $54,780 | $41,112 |
| 2017 | $55,850 | $42,040 |
| 2018 | $55,850 | $40,589 |
| 2019 | $61,550 | $44,066 |
| 2020 | $63,804 | $46,320 |
| 2021* | $66,139 | $47,367 |
| 2022* | $68,560 | $48,437 |
| 2023* | $71,069 | $49,532 |
| 2024* | $73,670 | $50,651 |
| 2025* | $76,367 | $51,796 |