| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $63,105 | $34,543 |
| 2016 | $65,058 | $39,288 |
| 2017 | $67,196 | $41,522 |
| 2018 | $67,196 | $37,767 |
| 2019 | $71,763 | $38,811 |
| 2020 | $73,685 | $40,733 |
| 2021* | $75,962 | $42,749 |
| 2022* | $78,309 | $44,865 |
| 2023* | $80,729 | $47,086 |
| 2024* | $83,223 | $49,417 |
| 2025* | $85,795 | $51,863 |