| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $47,425 | $21,304 |
| 2016 | $49,720 | $22,829 |
| 2017 | $50,630 | $23,917 |
| 2018 | $50,630 | $23,361 |
| 2019 | $52,910 | $23,651 |
| 2020 | $52,910 | $23,651 |
| 2021* | $53,878 | $23,944 |
| 2022* | $54,864 | $24,241 |
| 2023* | $55,868 | $24,542 |
| 2024* | $56,891 | $24,846 |
| 2025* | $57,932 | $25,154 |