| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,900 | $26,575 |
| 2016 | $42,230 | $27,977 |
| 2017 | $43,700 | $27,634 |
| 2018 | $43,700 | $26,402 |
| 2019 | $46,380 | $25,957 |
| 2020 | $47,970 | $27,547 |
| 2021* | $49,615 | $27,208 |
| 2022* | $51,317 | $26,874 |
| 2023* | $53,077 | $26,543 |
| 2024* | $54,898 | $26,216 |
| 2025* | $56,781 | $25,894 |
