| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,495 | $36,530 |
| 2016 | $54,965 | $35,248 |
| 2017 | $56,626 | $35,000 |
| 2018 | $56,626 | $33,653 |
| 2019 | $59,790 | $32,500 |
| 2020 | $61,440 | $34,150 |
| 2021* | $63,136 | $32,979 |
| 2022* | $64,878 | $31,847 |
| 2023* | $66,669 | $30,755 |
| 2024* | $68,509 | $29,700 |
| 2025* | $70,400 | $28,682 |