| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $38,780 | $22,475 |
| 2016 | $39,580 | $21,496 |
| 2017 | $40,395 | $20,784 |
| 2018 | $40,395 | $22,965 |
| 2019 | $41,615 | $22,794 |
| 2020 | $46,615 | $27,794 |
| 2021* | $47,575 | $27,588 |
| 2022* | $48,555 | $27,384 |
| 2023* | $49,556 | $27,182 |
| 2024* | $50,576 | $26,980 |
| 2025* | $51,618 | $26,781 |