| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $62,241 | $38,538 |
| 2016 | $64,022 | $38,277 |
| 2017 | $64,982 | $37,754 |
| 2018 | $64,982 | $36,473 |
| 2019 | $68,252 | $38,097 |
| 2020 | $69,804 | $39,649 |
| 2021* | $71,389 | $39,379 |
| 2022* | $73,009 | $39,112 |
| 2023* | $74,666 | $38,846 |
| 2024* | $76,361 | $38,581 |
| 2025* | $78,095 | $38,319 |