| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $44,620 | $29,981 |
| 2016 | $45,570 | $29,151 |
| 2017 | $46,680 | $29,313 |
| 2018 | $46,680 | $27,430 |
| 2019 | $48,990 | $28,429 |
| 2020 | $50,200 | $29,639 |
| 2021* | $51,425 | $29,805 |
| 2022* | $52,680 | $29,972 |
| 2023* | $53,965 | $30,140 |
| 2024* | $55,282 | $30,309 |
| 2025* | $56,631 | $30,478 |