| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $54,766 | $30,030 |
| 2016 | $57,116 | $30,368 |
| 2017 | $59,267 | $32,459 |
| 2018 | $59,267 | $30,208 |
| 2019 | $63,658 | $28,607 |
| 2020 | $66,118 | $31,067 |
| 2021* | $68,670 | $31,418 |
| 2022* | $71,321 | $31,773 |
| 2023* | $74,074 | $32,132 |
| 2024* | $76,933 | $32,495 |
| 2025* | $79,903 | $32,862 |
