| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2014 | $39,732 | $19,903 |
| 2015 | $40,932 | $21,103 |
| 2016 | $41,844 | $22,840 |
| 2017 | $42,654 | $21,592 |
| 2018 | $42,654 | $20,241 |
| 2019 | $46,440 | $23,308 |
| 2020* | $47,476 | $24,713 |
| 2021* | $48,534 | $26,204 |
| 2022* | $49,617 | $27,784 |
| 2023* | $50,723 | $29,459 |
| 2024* | $51,854 | $31,236 |
