| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $14,851 | $7,771 |
| 2016 | $17,804 | $12,659 |
| 2017 | $17,864 | $12,857 |
| 2018 | $17,864 | $12,616 |
| 2019 | $19,950 | $14,534 |
| 2020 | $21,450 | $16,034 |
| 2021* | $23,063 | $17,689 |
| 2022* | $24,797 | $19,514 |
| 2023* | $26,662 | $21,528 |
| 2024* | $28,667 | $23,750 |
| 2025* | $30,823 | $26,201 |
