| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $34,146 | $17,290 |
| 2016 | $33,331 | $15,253 |
| 2017 | $32,204 | $13,078 |
| 2018 | $32,204 | $16,490 |
| 2019 | $33,019 | $16,104 |
| 2020 | $33,790 | $16,875 |
| 2021* | $33,790 | $16,480 |
| 2022* | $33,790 | $16,094 |
| 2023* | $33,790 | $15,718 |
| 2024* | $33,790 | $15,350 |
| 2025* | $33,790 | $14,991 |