| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,150 | $23,005 |
| 2016 | $43,195 | $23,674 |
| 2017 | $44,032 | $23,938 |
| 2018 | $44,032 | $23,251 |
| 2019 | $46,218 | $25,806 |
| 2020 | $47,290 | $26,878 |
| 2021* | $48,387 | $27,660 |
| 2022* | $49,510 | $28,465 |
| 2023* | $50,658 | $29,293 |
| 2024* | $51,834 | $30,146 |
| 2025* | $53,036 | $31,023 |
