| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $67,044 | $25,042 |
| 2016 | $69,474 | $25,689 |
| 2017 | $71,409 | $25,542 |
| 2018 | $71,409 | $24,238 |
| 2019 | $76,718 | $26,228 |
| 2020 | $79,525 | $29,035 |
| 2021* | $82,404 | $29,784 |
| 2022* | $85,387 | $30,553 |
| 2023* | $88,478 | $31,341 |
| 2024* | $91,681 | $32,149 |
| 2025* | $95,000 | $32,979 |