| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,760 | $31,539 |
| 2016 | $52,940 | $33,365 |
| 2017 | $54,450 | $33,320 |
| 2018 | $54,450 | $30,929 |
| 2019 | $56,600 | $34,110 |
| 2020 | $58,250 | $35,760 |
| 2021* | $59,910 | $37,491 |
| 2022* | $61,618 | $39,305 |
| 2023* | $63,374 | $41,208 |
| 2024* | $65,180 | $43,202 |
| 2025* | $67,037 | $45,293 |