| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $47,030 | $26,825 |
| 2016 | $48,790 | $26,552 |
| 2017 | $50,550 | $27,605 |
| 2018 | $50,550 | $28,590 |
| 2019 | $54,080 | $27,662 |
| 2020 | $56,620 | $30,202 |
| 2021* | $58,738 | $31,280 |
| 2022* | $60,934 | $32,397 |
| 2023* | $63,213 | $33,553 |
| 2024* | $65,577 | $34,751 |
| 2025* | $68,030 | $35,992 |