| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $63,390 | $25,514 |
| 2016 | $65,966 | $27,016 |
| 2017 | $69,034 | $25,694 |
| 2018 | $69,034 | $23,257 |
| 2019 | $75,198 | $22,795 |
| 2020 | $78,270 | $25,867 |
| 2021* | $81,471 | $25,352 |
| 2022* | $84,803 | $24,848 |
| 2023* | $88,272 | $24,353 |
| 2024* | $91,882 | $23,869 |
| 2025* | $95,640 | $23,394 |