| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,932 | $27,376 |
| 2016 | $53,866 | $33,405 |
| 2017 | $56,914 | $35,746 |
| 2018 | $56,914 | $33,465 |
| 2019 | $61,274 | $35,295 |
| 2020 | $63,882 | $37,903 |
| 2021* | $67,498 | $40,560 |
| 2022* | $71,318 | $43,403 |
| 2023* | $75,355 | $46,446 |
| 2024* | $79,620 | $49,702 |
| 2025* | $84,126 | $53,186 |