| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $39,268 | $25,023 |
| 2016 | $39,618 | $24,898 |
| 2017 | $41,001 | $25,700 |
| 2018 | $41,001 | $25,744 |
| 2019 | $42,736 | $24,989 |
| 2020 | $42,736 | $24,989 |
| 2021* | $43,116 | $24,989 |
| 2022* | $43,500 | $24,989 |
| 2023* | $43,887 | $24,989 |
| 2024* | $44,278 | $24,989 |
| 2025* | $44,672 | $24,989 |