| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $62,200 | $51,717 |
| 2016 | $63,710 | $49,217 |
| 2017 | $65,524 | $50,931 |
| 2018 | $65,524 | $51,401 |
| 2019 | $69,604 | $54,489 |
| 2020 | $71,674 | $56,559 |
| 2021* | $73,717 | $58,527 |
| 2022* | $75,818 | $60,564 |
| 2023* | $77,978 | $62,672 |
| 2024* | $80,201 | $64,853 |
| 2025* | $82,487 | $67,109 |