| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,040 | $20,391 |
| 2016 | $36,764 | $20,864 |
| 2017 | $37,360 | $22,344 |
| 2018 | $37,360 | $22,444 |
| 2019 | $38,670 | $22,376 |
| 2020 | $39,325 | $23,031 |
| 2021* | $39,990 | $23,565 |
| 2022* | $40,665 | $24,112 |
| 2023* | $41,353 | $24,671 |
| 2024* | $42,052 | $25,244 |
| 2025* | $42,762 | $25,829 |
