| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $20,427 | $14,392 |
| 2016 | $20,403 | $14,191 |
| 2017 | $21,294 | $14,876 |
| 2018 | $21,294 | $13,154 |
| 2019 | $20,745 | $11,781 |
| 2020 | $21,113 | $12,149 |
| 2021* | $21,113 | $11,979 |
| 2022* | $21,113 | $11,811 |
| 2023* | $21,113 | $11,646 |
| 2024* | $21,113 | $11,483 |
| 2025* | $21,113 | $11,322 |
