| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $58,478 | $34,577 |
| 2016 | $60,888 | $34,291 |
| 2017 | $62,567 | $34,952 |
| 2018 | $62,567 | $30,997 |
| 2019 | $66,946 | $31,579 |
| 2020 | $68,898 | $33,531 |
| 2021* | $70,910 | $34,161 |
| 2022* | $72,980 | $34,804 |
| 2023* | $75,111 | $35,458 |
| 2024* | $77,305 | $36,125 |
| 2025* | $79,562 | $36,804 |