| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,184 | $35,370 |
| 2016 | $54,182 | $34,533 |
| 2017 | $55,198 | $34,020 |
| 2018 | $55,198 | $34,882 |
| 2019 | $57,218 | $32,686 |
| 2020 | $58,300 | $33,768 |
| 2021* | $59,396 | $33,265 |
| 2022* | $60,513 | $32,769 |
| 2023* | $61,650 | $32,281 |
| 2024* | $62,809 | $31,800 |
| 2025* | $63,990 | $31,326 |