| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,130 | $21,186 |
| 2016 | $37,500 | $22,539 |
| 2017 | $38,040 | $22,455 |
| 2018 | $38,040 | $21,654 |
| 2019 | $40,970 | $22,228 |
| 2020 | $42,690 | $23,948 |
| 2021* | $43,305 | $24,583 |
| 2022* | $43,928 | $25,234 |
| 2023* | $44,561 | $25,903 |
| 2024* | $45,203 | $26,589 |
| 2025* | $45,853 | $27,294 |
