| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,782 | $20,930 |
| 2016 | $37,814 | $22,051 |
| 2017 | $38,834 | $21,739 |
| 2018 | $38,834 | $23,358 |
| 2019 | $40,774 | $22,884 |
| 2020 | $41,492 | $23,602 |
| 2021* | $42,612 | $24,343 |
| 2022* | $43,763 | $25,107 |
| 2023* | $44,944 | $25,896 |
| 2024* | $46,158 | $26,709 |
| 2025* | $47,404 | $27,548 |
