| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $63,532 | $24,593 |
| 2016 | $64,654 | $25,271 |
| 2017 | $67,392 | $27,010 |
| 2018 | $67,392 | $26,033 |
| 2019 | $73,148 | $28,857 |
| 2020 | $76,044 | $31,753 |
| 2021* | $79,055 | $33,938 |
| 2022* | $82,186 | $36,273 |
| 2023* | $85,440 | $38,768 |
| 2024* | $88,824 | $41,435 |
| 2025* | $92,341 | $44,286 |