| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,528 | $34,667 |
| 2016 | $55,060 | $34,993 |
| 2017 | $56,636 | $35,319 |
| 2018 | $56,636 | $33,298 |
| 2019 | $61,550 | $36,738 |
| 2020 | $62,214 | $37,402 |
| 2021* | $63,993 | $37,754 |
| 2022* | $65,824 | $38,108 |
| 2023* | $67,706 | $38,467 |
| 2024* | $69,642 | $38,828 |
| 2025* | $71,634 | $39,193 |