| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $44,740 | $27,072 |
| 2016 | $45,980 | $27,624 |
| 2017 | $48,300 | $30,750 |
| 2018 | $48,300 | $29,701 |
| 2019 | $51,887 | $30,243 |
| 2020 | $53,672 | $32,028 |
| 2021* | $55,518 | $32,681 |
| 2022* | $57,428 | $33,348 |
| 2023* | $59,404 | $34,028 |
| 2024* | $61,447 | $34,723 |
| 2025* | $63,561 | $35,431 |