| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,942 | $23,867 |
| 2016 | $49,261 | $24,485 |
| 2017 | $52,341 | $26,274 |
| 2018 | $52,341 | $23,390 |
| 2019 | $56,116 | $24,514 |
| 2020 | $58,126 | $26,524 |
| 2021* | $61,759 | $27,800 |
| 2022* | $65,619 | $29,137 |
| 2023* | $69,720 | $30,538 |
| 2024* | $74,077 | $32,007 |
| 2025* | $78,707 | $33,547 |