| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $39,730 | $20,633 |
| 2016 | $41,687 | $21,704 |
| 2017 | $43,165 | $23,798 |
| 2018 | $43,165 | $17,771 |
| 2019 | $47,196 | $22,456 |
| 2020 | $45,595 | $20,855 |
| 2021* | $47,214 | $21,937 |
| 2022* | $48,890 | $23,076 |
| 2023* | $50,625 | $24,274 |
| 2024* | $52,422 | $25,533 |
| 2025* | $54,283 | $26,859 |