| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,089 | $33,156 |
| 2016 | $46,279 | $33,646 |
| 2017 | $48,019 | $33,364 |
| 2018 | $48,019 | $32,793 |
| 2019 | $51,351 | $33,134 |
| 2020 | $51,555 | $33,338 |
| 2021* | $52,916 | $33,545 |
| 2022* | $54,313 | $33,753 |
| 2023* | $55,747 | $33,962 |
| 2024* | $57,219 | $34,173 |
| 2025* | $58,729 | $34,384 |
