| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $62,406 | $30,863 |
| 2016 | $64,370 | $33,243 |
| 2017 | $66,186 | $29,344 |
| 2018 | $66,186 | $30,835 |
| 2019 | $58,514 | $30,159 |
| 2020 | $58,565 | $30,210 |
| 2021* | $58,618 | $30,261 |
| 2022* | $58,670 | $30,313 |
| 2023* | $58,723 | $30,364 |
| 2024* | $58,776 | $30,416 |
| 2025* | $58,829 | $30,468 |