| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,800 | $29,796 |
| 2016 | $43,300 | $31,058 |
| 2017 | $44,488 | $29,603 |
| 2018 | $44,488 | $28,955 |
| 2019 | $47,498 | $28,139 |
| 2020 | $47,998 | $28,639 |
| 2021* | $49,313 | $28,012 |
| 2022* | $50,664 | $27,398 |
| 2023* | $52,053 | $26,798 |
| 2024* | $53,479 | $26,211 |
| 2025* | $54,944 | $25,637 |
