| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,856 | $25,433 |
| 2016 | $51,652 | $23,242 |
| 2017 | $53,870 | $24,159 |
| 2018 | $53,870 | $22,870 |
| 2019 | $57,906 | $22,419 |
| 2020 | $59,369 | $23,882 |
| 2021* | $61,506 | $23,412 |
| 2022* | $63,721 | $22,950 |
| 2023* | $66,014 | $22,498 |
| 2024* | $68,391 | $22,055 |
| 2025* | $70,853 | $21,620 |