| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $56,922 | $34,232 |
| 2016 | $59,416 | $35,007 |
| 2017 | $59,810 | $35,231 |
| 2018 | $59,810 | $30,770 |
| 2019 | $64,050 | $32,248 |
| 2020 | $65,916 | $34,114 |
| 2021* | $67,834 | $34,885 |
| 2022* | $69,808 | $35,673 |
| 2023* | $71,840 | $36,480 |
| 2024* | $73,930 | $37,304 |
| 2025* | $76,081 | $38,147 |
