| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $48,510 | $25,598 |
| 2016 | $50,400 | $26,706 |
| 2017 | $52,414 | $28,534 |
| 2018 | $52,414 | $25,820 |
| 2019 | $35,093 | $25,917 |
| 2020 | $35,830 | $26,654 |
| 2021* | $36,582 | $27,411 |
| 2022* | $37,351 | $28,189 |
| 2023* | $38,135 | $28,990 |
| 2024* | $38,936 | $29,813 |
| 2025* | $39,754 | $30,660 |