| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,172 | $18,238 |
| 2016 | $38,272 | $21,139 |
| 2017 | $40,146 | $20,773 |
| 2018 | $40,146 | $19,510 |
| 2019 | $39,646 | $18,781 |
| 2020 | $40,002 | $19,137 |
| 2021* | $40,362 | $18,806 |
| 2022* | $40,725 | $18,481 |
| 2023* | $41,092 | $18,161 |
| 2024* | $41,462 | $17,847 |
| 2025* | $41,835 | $17,538 |
