| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $31,060 | $23,878 |
| 2016 | $32,220 | $24,792 |
| 2017 | $33,480 | $25,753 |
| 2018 | $33,480 | $25,298 |
| 2019 | $36,260 | $25,517 |
| 2020 | $37,480 | $26,737 |
| 2021* | $38,878 | $27,761 |
| 2022* | $40,328 | $28,824 |
| 2023* | $41,832 | $29,928 |
| 2024* | $43,393 | $31,074 |
| 2025* | $45,011 | $32,265 |