| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $19,032 | $15,511 |
| 2016 | $18,672 | $14,850 |
| 2017 | $18,528 | $14,630 |
| 2018 | $18,528 | $14,611 |
| 2019 | $18,827 | $14,795 |
| 2020 | $21,184 | $17,152 |
| 2021* | $21,184 | $17,130 |
| 2022* | $21,184 | $17,107 |
| 2023* | $21,184 | $17,085 |
| 2024* | $21,184 | $17,063 |
| 2025* | $21,184 | $17,041 |
