| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $35,861 | $22,555 |
| 2016 | $36,525 | $22,691 |
| 2017 | $37,800 | $23,690 |
| 2018 | $37,800 | $22,568 |
| 2019 | $42,160 | $24,890 |
| 2020 | $43,820 | $26,550 |
| 2021* | $45,349 | $27,718 |
| 2022* | $46,932 | $28,938 |
| 2023* | $48,570 | $30,211 |
| 2024* | $50,265 | $31,540 |
| 2025* | $52,019 | $32,928 |