| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $35,386 | $22,390 |
| 2016 | $35,000 | $19,769 |
| 2017 | $37,890 | $23,268 |
| 2018 | $37,890 | $22,589 |
| 2019 | $40,358 | $24,194 |
| 2020 | $41,408 | $25,244 |
| 2021* | $42,485 | $26,340 |
| 2022* | $43,589 | $27,483 |
| 2023* | $44,723 | $28,675 |
| 2024* | $45,885 | $29,920 |
| 2025* | $47,078 | $31,219 |