| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $42,524 | $34,942 |
| 2016 | $43,320 | $35,984 |
| 2017 | $43,320 | $36,568 |
| 2018 | $43,320 | $37,503 |
| 2019 | $44,800 | $32,873 |
| 2020 | $50,500 | $38,573 |
| 2021* | $51,444 | $39,560 |
| 2022* | $52,406 | $40,573 |
| 2023* | $53,386 | $41,612 |
| 2024* | $54,385 | $42,677 |
| 2025* | $55,402 | $43,770 |