| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | N/A | N/A |
| 2016 | $38,728 | $22,870 |
| 2017 | $39,474 | $22,081 |
| 2018 | $39,474 | $21,949 |
| 2019 | $41,322 | $22,648 |
| 2020 | $42,754 | $24,080 |
| 2021* | $43,908 | $24,391 |
| 2022* | $45,094 | $24,705 |
| 2023* | $46,311 | $25,024 |
| 2024* | $47,562 | $25,347 |
| 2025* | $48,846 | $25,674 |