| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $58,997 | $35,086 |
| 2016 | $60,999 | $36,122 |
| 2017 | $62,262 | $36,023 |
| 2018 | $62,262 | $34,773 |
| 2019 | $67,550 | $39,277 |
| 2020 | $69,598 | $41,325 |
| 2021* | $71,707 | $42,544 |
| 2022* | $73,880 | $43,799 |
| 2023* | $76,118 | $45,091 |
| 2024* | $78,424 | $46,421 |
| 2025* | $80,801 | $47,791 |