| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,200 | $20,834 |
| 2016 | $37,865 | $22,133 |
| 2017 | $39,304 | $22,980 |
| 2018 | $39,304 | $20,828 |
| 2019 | $42,444 | $24,505 |
| 2020 | $43,862 | $25,923 |
| 2021* | $45,529 | $27,424 |
| 2022* | $47,259 | $29,012 |
| 2023* | $49,055 | $30,692 |
| 2024* | $50,919 | $32,469 |
| 2025* | $52,854 | $34,349 |
