| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $62,922 | $35,786 |
| 2016 | $65,012 | $33,594 |
| 2017 | $66,242 | $35,086 |
| 2018 | $66,242 | $33,280 |
| 2019 | $70,052 | $32,732 |
| 2020 | $72,062 | $34,742 |
| 2021* | $74,130 | $34,169 |
| 2022* | $76,258 | $33,605 |
| 2023* | $78,446 | $33,050 |
| 2024* | $80,698 | $32,505 |
| 2025* | $83,014 | $31,969 |