| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $37,665 | $22,192 |
| 2016 | $39,043 | $21,542 |
| 2017 | $41,040 | $23,755 |
| 2018 | $41,040 | $23,845 |
| 2019 | $42,940 | $23,247 |
| 2020 | $43,915 | $24,222 |
| 2021* | $45,522 | $24,314 |
| 2022* | $47,188 | $24,406 |
| 2023* | $48,916 | $24,499 |
| 2024* | $50,706 | $24,592 |
| 2025* | $52,562 | $24,686 |
