| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $56,111 | $32,537 |
| 2016 | $57,849 | $33,472 |
| 2017 | $59,826 | $31,365 |
| 2018 | $59,826 | $34,857 |
| 2019 | $64,050 | $33,675 |
| 2020 | $64,272 | $33,897 |
| 2021* | $66,264 | $34,121 |
| 2022* | $68,319 | $34,346 |
| 2023* | $70,437 | $34,573 |
| 2024* | $72,620 | $34,801 |
| 2025* | $74,871 | $35,030 |