| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $48,339 | $28,307 |
| 2016 | $49,839 | $28,188 |
| 2017 | $51,228 | $28,758 |
| 2018 | $51,228 | $28,100 |
| 2019 | $54,326 | $28,456 |
| 2020 | $55,884 | $30,014 |
| 2021* | $57,488 | $30,395 |
| 2022* | $59,138 | $30,781 |
| 2023* | $60,835 | $31,172 |
| 2024* | $62,581 | $31,568 |
| 2025* | $64,377 | $31,969 |
