| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $62,882 | $45,025 |
| 2016 | $63,430 | $43,967 |
| 2017 | $65,308 | $46,713 |
| 2018 | $65,308 | $44,946 |
| 2019 | $70,368 | $48,551 |
| 2020 | $70,358 | $48,541 |
| 2021* | $70,970 | $48,531 |
| 2022* | $71,588 | $48,522 |
| 2023* | $72,210 | $48,512 |
| 2024* | $72,839 | $48,502 |
| 2025* | $73,472 | $48,492 |