| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,108 | $24,326 |
| 2016 | $42,650 | $24,873 |
| 2017 | $43,400 | $24,169 |
| 2018 | $43,400 | $22,514 |
| 2019 | $45,900 | $23,046 |
| 2020 | $46,616 | $23,762 |
| 2021* | $47,436 | $24,297 |
| 2022* | $48,271 | $24,843 |
| 2023* | $49,121 | $25,402 |
| 2024* | $49,985 | $25,974 |
| 2025* | $50,865 | $26,558 |