| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $38,550 | $34,075 |
| 2016 | $38,585 | $35,133 |
| 2017 | $55,393 | $51,328 |
| 2018 | $55,393 | $50,385 |
| 2019 | $61,176 | $57,388 |
| 2020 | $51,984 | $48,196 |
| 2021* | $52,031 | $49,690 |
| 2022* | $52,078 | $51,230 |
| 2023* | $52,124 | $52,819 |
| 2024* | $52,171 | $54,456 |
| 2025* | $52,218 | $56,144 |
