| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,116 | $32,446 |
| 2016 | $54,007 | $35,024 |
| 2017 | $54,633 | $36,299 |
| 2018 | $54,633 | $33,362 |
| 2019 | $59,278 | $32,824 |
| 2020 | $59,940 | $33,486 |
| 2021* | $60,635 | $34,162 |
| 2022* | $61,339 | $34,852 |
| 2023* | $62,050 | $35,557 |
| 2024* | $62,770 | $36,275 |
| 2025* | $63,498 | $37,008 |
