| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2014 | N/A | N/A |
| 2015 | $51,317 | $42,624 |
| 2016 | $52,992 | $43,127 |
| 2017 | $53,548 | $42,131 |
| 2018 | $53,548 | $44,376 |
| 2019 | $55,591 | $48,327 |
| 2020* | $56,792 | $49,898 |
| 2021* | $58,018 | $51,519 |
| 2022* | $59,272 | $53,194 |
| 2023* | $60,552 | $54,922 |
| 2024* | $61,860 | $56,707 |
