| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,610 | $20,756 |
| 2016 | $38,504 | $22,137 |
| 2017 | $40,785 | $23,922 |
| 2018 | $40,785 | $29,994 |
| 2019 | $46,150 | $24,287 |
| 2020 | $49,500 | $27,637 |
| 2021* | $52,430 | $29,865 |
| 2022* | $55,534 | $32,272 |
| 2023* | $58,822 | $34,873 |
| 2024* | $62,304 | $37,683 |
| 2025* | $65,993 | $40,721 |